[ARCHETYPE-632] Add logging conflict line in integration-test

[tkobayas]

https://issues.apache.org/jira/browse/ARCHETYPE-632

This PR is just for logging so no unit test.

[tkobayas]

Verify / macOS-latest jdk-8-temurin : The test failure should not be related to this PR (just logging)

2022-06-29T06:24:39.1486570Z [INFO] Building: create-3/pom.xml
2022-06-29T06:24:41.9537410Z [INFO] run post-build script verify.groovy
2022-06-29T06:24:42.0385050Z [INFO]   The post-build script did not succeed. assert template.exists()
2022-06-29T06:24:42.0385940Z        |        |
2022-06-29T06:24:42.0386510Z        |        false
2022-06-29T06:24:42.0387550Z        /Users/runner/work/maven-archetype/maven-archetype/maven-archetype-plugin/target/it/projects/create-3/target/generated-sources/archetype/src/main/resources/archetype-resources/pom.xml
2022-06-29T06:24:42.0389210Z [INFO]           create-3/pom.xml ................................. FAILED (2.9 s)