ci: required-tests: Remove test skip

Remove the rule that causes gatekeeper to skip tests
if we've only updated the required-tests.yaml list.
Although update to just the required-tests.yaml
doesn't change the outcome of any of the CI tests, it
does change whether gatekeeper will still pass with the new
rules. Although it's a bit of a hit to run the CI, it's probably
worth it to keep gatekeeper validated.

Signed-off-by: stevenhorsman <steven@uk.ibm.com>

tools/testing/gatekeeper/required-tests.yaml

@@ -17,7 +17,6 @@ paths:
   - "^ci/openshift-ci/": []
   - "^\\.github/workflows/static-checks": ["static"]
   - "^\\.github/workflows/": []
-  - "^tools/testing/gatekeeper/required-tests.yaml": []
   - "\\.md$": ["static"]
   # TODO: Expand filters
   # Sources