Name the repository when the pacemaker dispatches

The pacemaker never checks the repository out, so gh had no git context to
infer the repository from and the first link failed after its sleep.

.github/workflows/pacemaker.yml

@@ -33,5 +33,5 @@ jobs:
           [ "$next" -gt "$now" ] || next=$(( next + 3600 ))
           echo "Sleeping $(( (next - now) / 60 )) minutes until $(date -u -d @"$next" +%H:%M) UTC"
           sleep $(( next - now ))
-          gh workflow run hot_cves.yml --ref main
-          gh workflow run pacemaker.yml --ref main
+          gh workflow run hot_cves.yml -R "$GITHUB_REPOSITORY" --ref main
+          gh workflow run pacemaker.yml -R "$GITHUB_REPOSITORY" --ref main