Integrates unittests for Lts/Services/S* into validation step

ci/check_pr_policies.py

@@ -9,6 +9,7 @@ TEST_DIRS = [
     ROOT / "tests",
     ROOT / "test",
     ROOT / "qt6-after" / "qt6-migrated-benchmark" / "tests",
+    ROOT / "qt6-after" / "qt6-migrated-legatus" / "tests",
 ]
 CPP_EXTENSIONS = {".c", ".cc", ".cpp", ".cxx", ".h", ".hh", ".hpp", ".hxx"}
 ALLOWED_SIGNERS_FILE = ROOT / "ci" / "allowed_signers"