(maint) Update label sync workflow

There have been some upstream changes to the label sync workflow
and I want to make sure that they are the same here.

Author: gep13

.github/workflows/label-sync.yml

@@ -4,20 +4,28 @@ on:
   schedule:
     # Run at the end of the day (most likely UTC)
     - cron: "0 0 * * *"
+  push:
+    paths:
+      - '.github/workflows/label-sync.yml'
+    # Uncomment the following line if using a repository specific label file, also remove this comment line
+    #  - '.github/labels.yml'
 
 jobs:
   labels:
     # We use ubuntu as the image, as it is typically faster and cheaper (on private repos).
     runs-on: ubuntu-latest
 
     steps:
-      # uncomment the uses line if additional configuration in the current
-      # repository is used.
-      #- uses: actions/checkout@v3.0.2
-      - uses: EndBug/label-sync@v2.3.2
+      # Uncomment the following uses statement block if using a repository specific label file, also remove this comment line
+      #- uses: actions/checkout@v4
+      #  with:
+      #    sparse-checkout: .github/labels.yml
+      - uses: EndBug/label-sync@v2
         with:
           config-file: |
             https://raw.githubusercontent.com/chocolatey/.github/main/.github/labels.yml
+      # Uncomment the following line if using a repository specific label file, also remove this comment line
+      #      .github/labels.yml
           request-token: ${{ secrets.SYNC_TOKEN }} # Used when getting the config files.
           delete-other-labels: true # After initial run, and verification change this to true
           dry-run: false