WIP: release using GH UI

Author: jenschude

.github/workflows/ci.yml

@@ -191,7 +191,7 @@ jobs:
 
   release:
     if: startsWith( github.ref, 'refs/tags/v')
-    name: Create release
+    name: Add artifact to release
 
     runs-on: ubuntu-latest
     needs: ["coding-guidelines", "unit"]
@@ -231,37 +231,21 @@ jobs:
           name: commercetools-php-sdk-${{ steps.branch_name.outputs.SOURCE_TAG }}.phar
           path: commercetools-php-sdk.phar
 
-      - name: Read changeset
-        id: changeset
-        run: |
-          CHANGESET=`php tools/extract_changelog.php`
-          CHANGESET="${CHANGESET//'%'/'%25'}"
-          CHANGESET="${CHANGESET//$'\n'/'%0A'}"
-          CHANGESET="${CHANGESET//$'\r'/'%0D'}"
-          echo "::set-output name=changes::$CHANGESET"
-
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@v1
+      - name: Get release data
+        id: retrieve_release
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
-          draft: true
-          prerelease: false
-          body: |
-            ${{ steps.changeset.outputs.changes }}
+          GITHUB_TOKEN: ${{ secrets.token }}
+        run: |
+          gh api repos/commercetools/commercetools-php-sdk/releases/tags/$SOURCE_TAG > release_data.json
+          echo 'UPLOAD_URL='$(jq '.upload_url' release_data.json) >> $GITHUB_ENV
 
       - name: Upload Release Asset
         id: upload-release-asset
         uses: actions/upload-release-asset@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          # 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
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          upload_url: ${{ env.UPLOAD_URL }}
           asset_path: ./commercetools-php-sdk.phar
           asset_name: commercetools-php-sdk.phar
           asset_content_type: application/php-archive