Migrate off deprecated Gradle dependency syntax 

Migrate off deprecated Gradle dependency syntax 

Synchronise all plugins on Java 17 Minimum required GoCD version moves to 22.1.0.

Merge pull request #224 from gocd/dependabot/gradle/gradle-deps-97720… …581c8 Bump the gradle-deps group with 3 updates

Prefer compiler release flag to legacy compatibility flags 

Merge pull request #225 from gocd/dependabot/github_actions/github-ac… …tions-a645c2d1b6 Bump the github-actions group with 2 updates

Merge pull request #223 from gocd/gradlew-update-9.1.0 Update Gradle Wrapper from 9.0.0 to 9.1.0

Merge pull request #221 from gocd/dependabot/github_actions/github-ac… …tions-fe706e4060 Bump the github-actions group with 3 updates

Merge pull request #222 from gocd/dependabot/gradle/gradle-deps-8970c… …f7f9c Bump the gradle-deps group with 2 updates

Merge pull request #218 from gocd/gradlew-update-9.0.0 Update Gradle Wrapper from 8.14.2 to 9.0.0