Merge pull request finos#1867 from rocketstack-matt/fix/pr-labeller-untrusted-checkout

fix: remove untrusted checkout in pr-labelling workflow

Author: markscott-ms

.github/workflows/pr-labelling.yml

@@ -15,8 +15,6 @@ jobs:
         steps:
             - name: Checkout repository
               uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
-              with:
-                  ref: ${{ github.event.pull_request.head.sha }}
 
             - name: Label PR based on changes
               uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b # v6