CI: Gitea's label events are label_updated in the payload

Temporarily prints the event, to check what Gitea sends.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

.gitea/workflows/ci.yml

@@ -22,10 +22,15 @@ on:
 # is one runner, so a stale run would hold it (and the GPU) to the end. Adding
 # a label other than e2e:full starts a run whose jobs all skip; it gets a
 # group of its own, so it can't cancel the real one.
+#
+# Gitea triggers on `labeled` but hands the workflow its own name for the
+# action, `label_updated` (and `synchronized` for a push), so each check
+# below accepts both.
 concurrency:
   group: >-
     ${{ github.workflow }}-${{ github.head_ref || github.ref }}${{
-    (github.event.action == 'labeled' && github.event.label.name != 'e2e:full')
+    ((github.event.action == 'labeled' || github.event.action == 'label_updated')
+    && github.event.label.name != 'e2e:full')
     && format('-label-{0}', github.run_id) || '' }}
   cancel-in-progress: true
 
@@ -34,8 +39,17 @@ env:
   FULL: ${{ github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'e2e:full') }}
 
 jobs:
+  event:  # TEMPORARY, for #126: what Gitea puts in the event
+    runs-on: ubuntu-latest
+    steps:
+      - run: |
+          echo "action=[${{ github.event.action }}] label=[${{ github.event.label.name }}] event=${{ github.event_name }}"
+          echo "group=[${{ github.workflow }}-${{ github.head_ref || github.ref }}${{ ((github.event.action == 'labeled' || github.event.action == 'label_updated') && github.event.label.name != 'e2e:full') && format('-label-{0}', github.run_id) || '' }}]"
+
   checks:
-    if: github.event.action != 'labeled' || github.event.label.name == 'e2e:full'
+    if: >-
+      (github.event.action != 'labeled' && github.event.action != 'label_updated')
+      || github.event.label.name == 'e2e:full'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -92,7 +106,8 @@ jobs:
     # diagnosing (--lf).
     if: >-
       github.event_name != 'push'
-      && (github.event.action != 'labeled' || github.event.label.name == 'e2e:full')
+      && ((github.event.action != 'labeled' && github.event.action != 'label_updated')
+      || github.event.label.name == 'e2e:full')
     needs: checks
     runs-on: ubuntu-latest
     timeout-minutes: 90