fix(pie-monorepo): DSW-000 add missing steps in labeler workflow (#2047)

* fix(pie-monorepo): DSW-000 add missing steps in labeler workflow

* fix(pie-monorepo): DSW-000 update step name

.github/workflows/labeler-get-labels.yml

@@ -8,8 +8,11 @@ jobs:
     - name: Checkout
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
-    - name: Fetch main branch # This is necessary for comparing the current branch changes against main
-      run: git fetch origin main:main
+    - name: Fetch branches # This is necessary for comparing the current branch changes against main
+      run: |
+        git fetch origin main:main
+        git fetch origin ${{ github.head_ref }}:refs/remotes/origin/${{ github.head_ref }}
+        git checkout -b ${{ github.head_ref }} origin/${{ github.head_ref }}
 
     - name: Get Missing Labels
       uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1