Add issue workflow automation for Threads

Fixes #4461

Covered by changelog entry 4435.misc

.github/workflows/triage-move-labelled.yml

@@ -99,3 +99,26 @@ jobs:
         env:
           PROJECT_ID: "PN_kwDOAM0swc2KCw"
           GITHUB_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}
+
+  move_threads_issues:
+    name: Move A-Threads to Thread board
+    runs-on: ubuntu-latest
+    if: >
+        contains(github.event.issue.labels.*.name, 'A-Threads')
+    steps:
+      - uses: octokit/graphql-action@v2.x
+        with:
+          headers: '{"GraphQL-Features": "projects_next_graphql"}'
+          query: |
+            mutation add_to_project($projectid:String!,$contentid:String!) {
+              addProjectNextItem(input:{projectId:$projectid contentId:$contentid}) {
+                projectNextItem {
+                  id
+                }
+              }
+            }
+          projectid: ${{ env.PROJECT_ID }}
+          contentid: ${{ github.event.issue.node_id }}
+        env:
+          PROJECT_ID: "PN_kwDOAM0swc0rRA"
+          GITHUB_TOKEN: ${{ secrets.ELEMENT_BOT_TOKEN }}