Flyway configuration without datasource - spring-boot

Question

Try to setup Flyway v6.0.8 with Spring Boot v2.2.1.RELEASE in application.yaml file:
spring:
# CockroachDB connection
r2dbc:
url: r2dbc:postgresql://localhost:26257/defaultdb
username: test_user
password: qwerty
schema: some_schema
flyway:
# Doesn't support r2dbc driver, and don't think it's really necessary just for database structuring(will be no actual data migrations)
url: jdbc:postgresql://localhost:26257/defaultdb
# schemas: some_schema
user: test_user
password: qwerty
I want to configure Flyway just using spring.flyway.url/user/password without defining any spring.datasource in addition. As I understand that's possible to do based on this merged PR but I still have faced with the following exception regarding not defined datasource:
Caused by: Error creating bean with name 'flyway' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Unsatisfied dependency expressed through method 'flyway' parameter 1; nested exception org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'spring.datasource-org.springframework.boot.autoconfigure.jdbc.DataSourceProperties': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.autoconfigure.jdbc.DataSourceProperties]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType
What I do wrong?
build.gradle
plugins {
id 'org.flywaydb.flyway' version '6.1.1'
id 'org.springframework.boot' version '2.2.1.RELEASE'
}
apply plugin: 'io.spring.dependency-management'
repositories {
mavenCentral()
maven { url = uri("https://repo.spring.io/milestone") }
}
ext {
r2dbcPostgresqlVersion = '0.8.0.RELEASE'
postgresqlVersion = '42.2.9'
}
dependencies {
implementation("org.springframework.boot.experimental:spring-boot-starter-data-r2dbc")
implementation('org.springframework.boot:spring-boot-starter-webflux')
implementation('org.flywaydb:flyway-core')
implementation("io.r2dbc:r2dbc-postgresql:${r2dbcPostgresqlVersion}")
implementation("org.postgresql:postgresql:${postgresqlVersion}")
compileOnly('org.projectlombok:lombok')
annotationProcessor('org.projectlombok:lombok')
annotationProcessor('org.springframework.boot:spring-boot-configuration-processor')
testImplementation('org.springframework.boot:spring-boot-starter-test')
testImplementation('io.projectreactor:reactor-test')
}
dependencyManagement {
imports {
mavenBom("org.springframework.boot.experimental:spring-boot-bom-r2dbc:0.1.0.M3")
}
}