spring boot tomcat access logs log4j2 elastic common schema - spring-boot

Question

Configuring spring boot to use log4j2 and the ECS was simple enough. All we needed to do was include the following dependencies in our pom.xml:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>co.elastic.logging</groupId>
<artifactId>log4j2-ecs-layout</artifactId>
<version>1.0.1</version>
</dependency>
Then in the log4j2.xml file we just needed to include something like this:
<Console name="prod" target="SYSTEM_OUT">
<EcsLayout serviceName="${service-name}" stackTraceAsArray="true" includeOrigin="true" includeMarkers="true" />
</Console>
However, when we configure spring boot to log the application access logs in application.yml we do this:
server:
tomcat:
accesslog:
enabled: true
encoding: UTF-8
directory: /dev
prefix: stdout
buffered: false
suffix:
file-date-format:
pattern: "ACCESS_LOG: %h %l %u \"%{yyyy-MM-dd HH:mm:ss.SSS}t\" \"%r\" status=%s size=%b \"user-agent=%{User-Agent}i\""
The access logs are not logged as json with the EcsLayout.
How can I configure a spring boot application to log tomcat access logs as json to the console using the elastic common schema (json) format?