fix: add id-token write permission for OIDC authentication (#225)

Resolves workflow failure in AWS Backup Feature Discovery where the
anthropics/claude-code-action@beta requires id-token: write permission
to authenticate via OIDC tokens.

Closes #224

Author: lgallard

.github/workflows/feature-discovery.yml

@@ -33,6 +33,7 @@ jobs:
       contents: read
       issues: write
       actions: read
+      id-token: write
 
     steps:
       - name: Checkout repository