ci: PLT-781: Add Assignee on fm sync

Author: nikitabelonogov

.github/workflows/fm-command.yml

@@ -9,7 +9,7 @@ concurrency:
 
 jobs:
   sync:
-    name: "Update: Update Feature Flags"
+    name: "Follow Merge: Sync Upstream PRs"
     if: github.event.client_payload.slash_command.args.unnamed.arg1 == 'sync'
     uses: ./.github/workflows/follow-merge-upstream-repo-sync-v2.yml
     with:

.github/workflows/follow-merge-upstream-repo-sync-v2.yml

@@ -129,13 +129,12 @@ jobs:
           upstream_prs_urls: "${{ steps.upstream-prs.outputs.upstream_prs_urls }}"
 
       - name: Add PR Assignees
-        if: steps.upstream-prs.outputs.assignees
         uses: ./.github/actions-hub/actions/github-add-pull-request-assignees
         continue-on-error: true
         with:
           github_token: ${{ secrets.GIT_PAT }}
           pullrequest_number: "${{ steps.get-pr.outputs.number }}"
-          assignees: "${{ steps.upstream-prs.outputs.assignees }}"
+          assignees: "${{ steps.upstream-prs.outputs.assignees }},${{ github.event.client_payload.github.actor }}"
 
       - name: Add PR state Labels
         if: steps.upstream-prs.outputs.status == 'stale'