vcs-diff-lint: again scan sub-projects

For some pylint checkers related to "imports" it makes a practical
difference if we scan the whole git directory, or sub-directories.
This layout makes the layout more "realistic", e.g. "mock" or "behave"
is not considered a python module.

This reverts commit b5c9469.

.github/workflows/python-diff-lint.yml

@@ -17,6 +17,10 @@ jobs:
         uses: fedora-copr/vcs-diff-lint-action@v1
         id: VCS_Diff_Lint
         with:
+          subdirectories: |
+            behave
+            mock
+            releng
           linter_tags: |
             ruff
             pylint

behave/pylintrc

@@ -0,0 +1,13 @@
+# mock pylint configuration for behave/ subdir
+
+[MESSAGES CONTROL]
+
+# Reasoning for wide warning ignore
+# ---------------------------------
+# import-error
+#     This is here to silence Pylint in CI where we do not have all the
+#     build/runtime dependencies installed.
+# cyclic-import
+#     Seems like cyclic-import is just a style check which is not going to be
+#     fixed: https://github.com/PyCQA/pylint/issues/6983
+disable=import-error,cyclic-import