update integration test

.github/workflows/integration-tests.yml

@@ -3,11 +3,11 @@ on: # rebuild any PRs and main branch changes
   pull_request:
     branches:
       - main
-      - 'releases/*'
+      - "releases/*"
   push:
     branches:
       - main
-      - 'releases/*'
+      - "releases/*"
 
 jobs:
   run-integration-test:
@@ -32,18 +32,18 @@ jobs:
       - uses: actions/setup-python@v2
         name: Install Python
         with:
-          python-version: '3.x' 
+          python-version: "3.x"
 
       - name: Install requests library
         run: pip install requests
 
       - name: Validate kubectl setup
-        run: python test/validate-kubectl.py latest
+        run: python test/validate-kubectl.py !v1.15.1
 
       - name: Setup kubectl
         uses: ./
         with:
-          version: 'v1.15.1'
+          version: "v1.15.1"
 
       - name: Validate kubectl setup
         run: python test/validate-kubectl.py 'v1.15.1'