chore: update PR format workflow to exempt changeset PRs from label requirements (#330)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Zac Rosenbauer <zac@joggr.io>

Author: devin-ai-integration[bot]

.github/workflows/ci-pr-format.yaml

@@ -17,14 +17,22 @@ jobs:
       issues: write
       pull-requests: write
     steps:
+      - name: Extract branch name
+        id: extract-branch
+        run: |
+          BRANCH_NAME="${{ github.head_ref }}"
+          echo "branch_name=$BRANCH_NAME" >> $GITHUB_OUTPUT
+          
       - name: '🏷️ Validate Labels: Semver'
+        if: ${{ !startsWith(steps.extract-branch.outputs.branch_name, 'changeset-release/') }}
         uses: mheap/github-action-required-labels@v5
         with:
           mode: exactly
           count: 1
           labels: "semver:.*"
           use_regex: true
       - name: '🏷️ Validate Labels: Type'
+        if: ${{ !startsWith(steps.extract-branch.outputs.branch_name, 'changeset-release/') }}
         uses: mheap/github-action-required-labels@v5
         with:
           mode: exactly