fix: add go mod tidy before executing e2e tests

Author: leonsteinhaeuser

.github/workflows/test_e2e.yaml

@@ -85,6 +85,9 @@ jobs:
       - name: Install dependencies for e2e tests
         run: make helm-install
 
+      - name: go mod tidy
+        run: go mod tidy
+
       - name: Run e2e tests
         run: make e2e-run