chore: update external resources (#74)

Updated:
- rhdh yarn.lock (ec6e18f -> 885b042) [Update to backstage v1.49.4]

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

resources/metadata.json

@@ -1,4 +1,4 @@
 {
   "export-util-script-hash": "d8ced8b57c27b39027c250ae67517b2118dcc589",
-  "rhdh-hash": "ec6e18ff0de3c3de2829539618ba5bff9a070eeb"
+  "rhdh-hash": "885b042f7c96e7bb82efdeed5d20f232bba0c6dc"
 }