Deprecate TRAP cache cleanup

lib/analyze-action.js

@@ -108725,6 +108725,9 @@ async function cleanupTrapCaches(config, features, logger) {
       trap_cache_cleanup_skipped_because: "feature disabled"
     };
   }
+  logger.warning(
+    "TRAP cache cleanup is deprecated and will be removed in May 2026. We recommend instead disabling TRAP caching by passing the `trap-caching: false` input to the `init` Action."
+  );
   if (!await isAnalyzingDefaultBranch()) {
     return {
       trap_cache_cleanup_skipped_because: "not analyzing default branch"