Pin anthropics/claude-code-action to commit SHA

Author: mcharbo

.github/workflows/nightly-tfc-report.yml

@@ -150,7 +150,7 @@ jobs:
 
       - name: Analyze failures
         if: steps.collect-tfc.outputs.found != '0'
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@edd85d61533cbba7b57ed0ca4af1750b1fdfd3c4 # v1
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_IDP_DEV_ALERTS }}
           DRY_RUN: ${{ inputs.dry_run }}