Update quality-assurance.yaml workflow to get number of commits in push

Signed-off-by: James Bradlee <[email protected]>

.github/workflows/quality-assurance.yaml

@@ -20,8 +20,17 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      - name: Get number of commits in push
+        id: payload
+        if: github.event_name == 'push'
+        env:
+          COMMITS: ${{ toJson(github.event.commits) }}
+        run: |
+          echo "commit_length=$(echo $COMMITS | jq '. | length')" >> $GITHUB_OUTPUT
+      - name: Checking out ${{ steps.payload.outputs.commit_length || '1' }} commits
         uses: actions/checkout@v4
+        with:
+          fetch-depth: ${{ steps.payload.outputs.commit_length || '1' }}
       - name: Setup Ktlint
         uses: ./.github/actions/setup-ktlint
       - run: |