Revert "fix(ci): add workflows:write permission to amber-issue-handler (#592)"

This reverts commit 3c33b24.

Author: jeremyeder

.github/workflows/amber-issue-handler.yml

@@ -29,8 +29,7 @@ permissions:
   contents: write
   issues: write
   pull-requests: write
-  id-token: write    # Required for OIDC token (Bedrock/Vertex/Foundry/OAuth)
-  workflows: write   # Required to create/update GitHub Actions workflow files
+  id-token: write  # Required for OIDC token (Bedrock/Vertex/Foundry/OAuth)
 
 jobs:
   amber-handler: