chore: update actions/add-to-project digest to 280af8a (#1385)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ADD_TO_HTO_PROJECT.yml

@@ -14,7 +14,7 @@ jobs:
     name: Add issue to project
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/add-to-project@cbdbf0bceb3e9b05545b624d56eaed406df759db
+      - uses: actions/add-to-project@280af8ae1f83a494cfad2cb10f02f6d13529caa9
         name: Add to project
         id: add-project
         with: