chore: fix heroku install

Author: wurstbrot

.github/workflows/depoy.yml

@@ -19,6 +19,9 @@ jobs:
             echo "HEROKU_BRANCH=master" >> $GITHUB_ENV
           fi
           echo "HEROKU_BRANCH=master" >> $GITHUB_ENV
+      - name: Install Heroku CLI
+        run: |
+          curl https://cli-assets.heroku.com/install.sh | sh 
       - name: "Deploy ${{ github.ref }} to Heroku"
         uses: akhileshns/heroku-deploy@v3.13.15
         with: