fix: run git pull before syncing content

This will help avoid conflicts when using the matrix strategy.

action.yml

@@ -39,6 +39,9 @@ runs:
     - name: Create the collection directory if it does not exist
       shell: bash
       run: mkdir -p  ${{ inputs.collection_directory_path }}
+    - run: git pull
+      if: ${{ !env.DRY_RUN }}
+      shell: bash
     - name: Sync collection
       working-directory: ${{ inputs.collection_directory_path }}
       shell: bash