Enforce test dependencies scope

[famod]

https://quarkusio.zulipchat.com/#narrow/stream/187030-users/topic/Litle.20error.20on.20quarkus-panache.20poms.201.2E9.2E2-Final

Avoids manual cleanups like #13916.

Example:

[INFO] --- maven-enforcer-plugin:3.0.0-M3:enforce (enforce-test-deps-scope) @ quarkus-panache-common ---
[WARNING] Rule 0: org.apache.maven.plugins.enforcer.BannedDependencies failed with message:
Found test dependencies with wrong scope:
Found Banned Dependency: org.junit.jupiter:junit-jupiter-api:jar:5.7.0
Use 'mvn dependency:tree' to locate the source of the banned dependencies.

Note: independent-projects are not covered because they don't inherit from build-parent. Edit: Should be ok since those projects are used by other modules that do inherit from build-parent, so we can rely on the transitive check.

• check quarkus-junit-* as discussed via chat

[famod]

Just let me know if we really want to copy the execution to each independent project. See updated PR description.

[geoand]

Great!

[gastaldi]

LGTM

[gsmet]

Thanks!