chore: update Uffizzi Workflows (#1390)

* Update uffizzi-build.yml

* Update uffizzi-preview.yml

.github/workflows/uffizzi-build.yml

@@ -64,17 +64,11 @@ jobs:
           name: preview-spec
           path: docker-compose.rendered.yml
           retention-days: 2
-      - name: Serialize PR Event to File
-        run: |
-          cat << EOF > event.json
-          ${{ toJSON(github.event) }}
-
-          EOF
       - name: Upload PR Event as Artifact
         uses: actions/upload-artifact@v3
         with:
           name: preview-spec
-          path: event.json
+          path: ${{github.event_path}}
           retention-days: 2
 
   delete-preview:
@@ -83,15 +77,9 @@ jobs:
     if: ${{ github.event.action == 'closed' }}
     steps:
       # If this PR is closing, we will not render a compose file nor pass it to the next workflow.
-      - name: Serialize PR Event to File
-        run: |
-          cat << EOF > event.json
-          ${{ toJSON(github.event) }}
-
-          EOF
       - name: Upload PR Event as Artifact
         uses: actions/upload-artifact@v3
         with:
           name: preview-spec
-          path: event.json
+          path: ${{github.event_path}}
           retention-days: 2

.github/workflows/uffizzi-preview.yml

@@ -45,7 +45,7 @@ jobs:
         run: |
           echo 'EVENT_JSON<<EOF' >> $GITHUB_ENV
           cat event.json >> $GITHUB_ENV
-          echo 'EOF' >> $GITHUB_ENV
+          echo -e '\nEOF' >> $GITHUB_ENV
 
       - name: Hash Rendered Compose File
         id: hash