chore(deps): bump co.elastic.logging:log4j2-ecs-layout (#270)

Bumps [co.elastic.logging:log4j2-ecs-layout](https://github.com/elastic/ecs-logging-java) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/elastic/ecs-logging-java/releases)
- [Commits](elastic/ecs-logging-java@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: co.elastic.logging:log4j2-ecs-layout
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

integration-test/build.gradle

@@ -31,7 +31,7 @@ dependencies {
     implementation('org.springframework.boot:spring-boot-starter-web')
     implementation('org.springframework.boot:spring-boot-starter-actuator')
     implementation('org.springframework.boot:spring-boot-starter-log4j2')
-    implementation('co.elastic.logging:log4j2-ecs-layout:1.5.0')
+    implementation('co.elastic.logging:log4j2-ecs-layout:1.6.0')
 
     testImplementation group: 'org.spockframework', name: 'spock-core', version: versions.spock
     testImplementation group: 'org.awaitility', name: 'awaitility', version: versions.awaitility