use changelog via env

Author: denchenko

.github/workflows/generate-messageflow-docs.yml

@@ -52,6 +52,7 @@ jobs:
       - name: Commit & push (if anything changed)
         env:
           PAT: ${{ secrets.INTEGRATION_PAT }}
+          CHANGELOG: ${{ steps.generate-docs.outputs.changelog }}
         run: |
           if ! (git diff-index --quiet HEAD -- && [ -z "$(git ls-files --others --exclude-standard)" ]); then
             git config user.name  "messageflow-ci-bot"
@@ -61,10 +62,10 @@ jobs:
             COMMIT_MSG="Sync: ${{ github.event.client_payload.source_repo }}@${{ github.event.client_payload.source_sha }}"
 
             # Add changes details if available
-            if [ -n "${{ steps.generate-docs.outputs.changelog }}" ]; then
+            if [ -n "$CHANGELOG" ]; then
               echo "Changelog from variable:"
-              echo ${{ steps.generate-docs.outputs.changelog }}
-              printf "%s\n\n%s\n" "$COMMIT_MSG" "${{ steps.generate-docs.outputs.changelog }}" > /tmp/commit_msg.txt
+              echo "$CHANGELOG"
+              printf "%s\n\n%s\n" "$COMMIT_MSG" "$CHANGELOG" > /tmp/commit_msg.txt
             else
               echo "$COMMIT_MSG" > /tmp/commit_msg.txt
             fi