Several integration tests are never run and fail if you do

The README.md states

Run all the tests with `mvn -Prun-its verify` to assure nothing else was accidentally broken.

The Github actions reuses for the CI build

apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v2

which does the same

./mvnw --errors --batch-mode --show-version -D"invoker.streamLogsOnFailures" -P run-its verify

https://github.com/apache/maven-gh-actions-shared/blob/v2/.github/workflows/maven-verify.yml#L167
https://github.com/apache/maven-gh-actions-shared/blob/v2/.github/workflows/maven-verify.yml#L93

The snag is that this profile does not exist in this project.

I asked this and was told to use the `tck-git` profile
https://github.com/apache/maven-scm/pull/134#issuecomment-1130214768

I found that there is also a `tck-svn` profile and a `tck` profile.

When I run `mvn clean verify -Ptck` there are several tests that fail and are apparently never run by anyone.

Proposal: 

• Create a profile run-its that simply activates the appropriate tck profiles.
• Fix the failing tests.