chore(deps): update eps1lon/actions-label-merge-conflict action to v3 (#11200)

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

.github/workflows/pull-request-conflict.yml

@@ -15,7 +15,7 @@ jobs:
     if: ${{ github.repository == 'jellyfin/jellyfin' }}
     steps:
       - name: Apply label
-        uses: eps1lon/actions-label-merge-conflict@fd1f295ee7443d13745804bc49fe158e240f6c6e # tag=v2.1.0
+        uses: eps1lon/actions-label-merge-conflict@e62d7a53ff8be8b97684bffb6cfbbf3fc1115e2e # v3.0.0
         if: ${{ github.event_name == 'push' || github.event_name == 'pull_request_target'}}
         with:
           dirtyLabel: 'merge conflict'