Bump Groovy to version 4

[artamonovkirill]

Groovy 4

Contents

• Groovy 4.0.24
• Spock 2.3-groovy-4.0
• Gradle 7.6

Comments

Looks like some Gradle 6 plugins are still trying to pull Groovy 4 with an old groupId:

Execution failed for task ':exercises:practice:accumulate:compileGroovy'.
> Could not resolve all files for configuration ':exercises:practice:accumulate:detachedConfiguration1'.
   > Could not find org.codehaus.groovy:groovy:4.0.24.
     Searched in the following locations:
       - https://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy/4.0.24/groovy-4.0.24.pom
     If the artifact you are trying to retrieve can be found in the repository but without metadata in 'Maven POM' format, you need to adjust the 'metadataSources { ... }' of the repository declaration.
     Required by:
         project :exercises:practice:accumulate
   > Could not find org.codehaus.groovy:groovy-ant:4.0.24.
     Searched in the following locations:
       - https://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy-ant/4.0.24/groovy-ant-4.0.24.pom
     If the artifact you are trying to retrieve can be found in the repository but without metadata in 'Maven POM' format, you need to adjust the 'metadataSources { ... }' of the repository declaration.
     Required by:
         project :exercises:practice:accumulate
   > Could not find org.codehaus.groovy:groovy-templates:4.0.24.
     Searched in the following locations:
       - https://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy-templates/4.0.24/groovy-templates-4.0.24.pom
     If the artifact you are trying to retrieve can be found in the repository but without metadata in 'Maven POM' format, you need to adjust the 'metadataSources { ... }' of the repository declaration.
     Required by:
         project :exercises:practice:accumulate

Upgrading to Gradle 7+ solves the issue, so I opted to Gradle 7.6 as it works with Java 11 (the version used by the test runner at the moment).

Proof of work

./gradlew b does not fail

[github-actions]

Hello. Thanks for opening a PR on Exercism 🙂

We ask that all changes to Exercism are discussed on our Community Forum before being opened on GitHub. To enforce this, we automatically close all PRs that are submitted. That doesn't mean your PR is rejected but that we want the initial discussion about it to happen on our forum where a wide range of key contributors across the Exercism ecosystem can weigh in.

You can use this link to copy this into a new topic on the forum. If we decide the PR is appropriate, we'll reopen it and continue with it, so please don't delete your local branch.

If you're interested in learning more about this auto-responder, please read this blog post.

---

Note: If this PR has been pre-approved, please link back to this PR on the forum thread and a maintainer or staff member will reopen it.