added Carthage step to release pipeline

.github/workflows/publish_release.yml

@@ -13,6 +13,11 @@ jobs:
       # Make sure we can lint before creating the release.
       - name: Cocoapods lint
         run: make cocoapods
+      # Make sure we can build with Carthage before the release
+      - name: Build and archive framework for Carthage users
+        env:
+          DEVELOPER_DIR: /Applications/Xcode_11.7.app/Contents/Developer
+        run: carthage build --no-skip-current && carthage archive
       - name: Create Release Branch
         env:
           GITHUB_CHANGELOG_API_KEY: ${{ secrets.GITHUB_TOKEN }}
@@ -37,3 +42,14 @@ jobs:
         env:
           COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}
         run: pod trunk push
+      - name: Upload binary framework to release asset
+        id: upload-release-asset 
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          FRAMEWORK_NAME: PINCache
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
+          asset_path: ./${{ env.FRAMEWORK_NAME }}.framework.zip
+          asset_name: ${{ env.FRAMEWORK_NAME }}.framework.zip
+          asset_content_type: application/zip