Use make targets

.github/workflows/upgrade-test.yaml

@@ -30,11 +30,14 @@ jobs:
             --port 443:443@loadbalancer
             --wait
       - name: install latest warden operator from the release
-        run:  helm install warden https://github.com/kyma-project/warden/releases/latest/download/warden-chart.tgz
+        run: |
+          latest_tag=$(git describe --tags $(git rev-list --tags --max-count=1))
+          git checkout $latest_tag
+          make install
       - name: checkout to latest commit and install warden
         run: |
           last_commit=$(git rev-parse origin/main)
           git checkout $last_commit
-          helm install warden https://github.com/kyma-project/warden/tree/main/charts/warden
+          make install
       - name: run integration tests
         run: make test