Ansible playbook with become_method=pbrun not working - ansible

Question

I am a beginner on Ansible. I am trying to run command as a db user and we have pbrun setup for changing users in my company.
Below is how my pbrun policy is defined as :
[ RunAs User ] [ Command ]
root /bin/su - couchbase
root /bin/su - enterprisedb
From ansible.cfg (only sharing privilege_escalation part):
[privilege_escalation]
become=true
become_method=pbrun
become_user=''
become_ask_pass=False
become_flags: '/bin/su - enterprisedb'
From playbook :
$ cat ping.yml
- name: Test
hosts: all
gather_facts: false
any_errors_fatal: false
tasks:
- shell: whoami
register: output
- debug:
msg: "{{output.stdout}}"
Below is how I am running playbook.
ansible-playbook -i sample.host1.list ping.yml -k -vvvv
Output :
$ ansible-playbook -i sample.host1.list ping.yml -k -vvvv
ansible-playbook 2.8.12
config file = /home/ads_username/ansible_work_dir/ansible.cfg
configured module search path = [u'/adshome/ads_username/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible-playbook
python version = 2.7.5 (default, Sep 26 2019, 13:23:47) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
Using /home/ads_username/ansible_work_dir/ansible.cfg as config file
SSH password:
setting up inventory plugins
host_list declined parsing /home/ads_username/ansible_work_dir/sample.host1.list as it did not pass it's verify_file() method
auto declined parsing /home/ads_username/ansible_work_dir/sample.host1.list as it did not pass it's verify_file() method
yaml declined parsing /home/ads_username/ansible_work_dir/sample.host1.list as it did not pass it's verify_file() method
Parsed /home/ads_username/ansible_work_dir/sample.host1.list inventory source with ini plugin
Loading callback plugin debug of type stdout, v2.0 from /usr/lib/python2.7/site-packages/ansible/plugins/callback/debug.pyc
Loading callback plugin profile_tasks of type aggregate, v2.0 from /usr/lib/python2.7/site-packages/ansible/plugins/callback/profile_tasks.pyc
PLAYBOOK: ping.yml ******************************************************************************************************************************************
Positional arguments: ping.yml
ask_pass: True
become_method: pbrun
inventory: (u'/home/ads_username/ansible_work_dir/sample.host1.list',)
forks: 5
tags: (u'all',)
verbosity: 4
connection: paramiko
timeout: 10
become: True
1 plays in ping.yml
PLAY [Adding VM to inventory] *******************************************************************************************************************************
META: ran handlers
TASK [shell] ************************************************************************************************************************************************
task path: /home/ads_username/ansible_work_dir/ping.yml:6
Wednesday 10 November 2021 15:21:32 -0700 (0:00:00.053) 0:00:00.053 ****
<server_name.region.company.com> ESTABLISH PARAMIKO SSH CONNECTION FOR USER: None on PORT 22 TO server_name.region.company.com
<server_name.region.company.com> EXEC /bin/bash -c '( umask 77 && mkdir -p "` echo /tmp `"&& mkdir /tmp/ansible-tmp-1636582892.39-15614-57850062632655 && echo ansible-tmp-1636582892.39-15614-57850062632655="` echo /tmp/ansible-tmp-1636582892.39-15614-57850062632655 `" ) && sleep 0'
<server_name.region.company.com> Attempting python interpreter discovery
<server_name.region.company.com> EXEC /bin/bash -c 'echo PLATFORM; uname; echo FOUND; command -v '"'"'/usr/bin/python'"'"'; command -v '"'"'python3.7'"'"'; command -v '"'"'python3.6'"'"'; command -v '"'"'python3.5'"'"'; command -v '"'"'python2.7'"'"'; command -v '"'"'python2.6'"'"'; command -v '"'"'/usr/libexec/platform-python'"'"'; command -v '"'"'/usr/bin/python3'"'"'; command -v '"'"'python'"'"'; echo ENDFOUND && sleep 0'
<server_name.region.company.com> Python interpreter discovery fallback (pipelining support required for extended interpreter discovery)
Using module file /usr/lib/python2.7/site-packages/ansible/modules/commands/command.py
<server_name.region.company.com> PUT /adshome/ads_username/.ansible/tmp/ansible-local-155953Afqz2/tmpgNQgMu TO /tmp/ansible-tmp-1636582892.39-15614-57850062632655/AnsiballZ_command.py
<server_name.region.company.com> EXEC /bin/bash -c 'chmod u+x /tmp/ansible-tmp-1636582892.39-15614-57850062632655/ /tmp/ansible-tmp-1636582892.39-15614-57850062632655/AnsiballZ_command.py && sleep 0'
<server_name.region.company.com> EXEC /bin/bash -c 'echo BECOME-SUCCESS-sgemmsfapenzvcsbxdnbjneynirmhzkl; echo "/usr/bin/python /tmp/ansible-tmp-1636582892.39-15614-57850062632655/AnsiballZ_command.py"|pbrun /bin/su - enterprisedb && sleep 0'
<server_name.region.company.com> EXEC /bin/bash -c 'rm -f -r /tmp/ansible-tmp-1636582892.39-15614-57850062632655/ > /dev/null 2>&1 && sleep 0'
[WARNING]: Platform linux on host server_name.region.company.com is using the discovered Python interpreter at /usr/bin/python, but future installation of
another Python interpreter could change this. See https://docs.ansible.com/ansible/2.8/reference_appendices/interpreter_discovery.html for more information.
fatal: [server_name.region.company.com]: FAILED! => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false,
"rc": 2
}
MSG:
MODULE FAILURE
See stdout/stderr for the exact error
MODULE_STDOUT:
Last login: Wed Nov 10 15:21:02 MST 2021
/usr/bin/python: can't open file '/tmp/ansible-tmp-1636582892.39-15614-57850062632655/AnsiballZ_command.py': [Errno 13] Permission denied
PLAY RECAP **************************************************************************************************************************************************
server_name.region.company.com : ok=0 changed=0 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0
Wednesday 10 November 2021 15:21:35 -0700 (0:00:03.141) 0:00:03.194 ****
===============================================================================
shell ------------------------------------------------------------------------------------------------------------------------------------------------ 3.14s
/home/ads_username/ansible_work_dir/ping.yml:6 --------------------------------------------------------------------------------------------------------------------
Please help guide me on what is wrong in my setup and if it is possible to make this work without changing anything in my pbrun policy.