👷 misc(CI): add dependencies label to upgrade PRs

.github/workflows/upgrade-deps.yml

@@ -1,5 +1,4 @@
 name: Dependency upgrade
-
 on:
   workflow_dispatch:
     inputs:
@@ -8,9 +7,9 @@ on:
         required: true
         type: choice
         options:
-        - all
-        - mermaid
-        - katex
+          - all
+          - mermaid
+          - katex
   schedule:
     - cron: '32 4 * * *'
 
@@ -85,6 +84,6 @@ jobs:
             exit 0
           fi
           git push -u origin deps/upgrade-${{ matrix.dependency }}
-          gh pr create --fill --base main --head deps/upgrade-${{ matrix.dependency }}
+          gh pr create --fill --base main --head deps/upgrade-${{ matrix.dependency }} --label "dependencies"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}