ci: pytest: test_provides: ignore kernel fragments

Kernel fragments are not packaged nor used for building the kernels, since only the full
config is used at build-time. As such, they shouldn't be included in the checksums.

Signed-off-by: Aster Boese <asterboese@mailbox.org>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7798>

.ci/testcases/test_source.py

@@ -101,6 +101,9 @@ def test_aports_unreferenced_files():
             # Skip APKBUILDs and directories
             if rel_file_path in ["APKBUILD", "gitlab-ci.yml.j2"] or os.path.isdir(file):
                 continue
+            # Skip kernel fragments in linux-* packages
+            if os.path.basename(rel_file_path).endswith(".config") and apkbuild["pkgname"].startswith("linux-"):
+                continue
 
             if os.path.basename(rel_file_path) not in sources_chk \
                     and rel_file_path not in apkbuild["install"] \