fix: add kubectl setup step to rc/stage workflows

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Mounika-2311

.github/workflows/deploy-rc.yml

@@ -40,6 +40,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Setup kubectl
+        uses: azure/setup-kubectl@v3
+
       - name: Login to Registry
         run: |
           echo "${{ secrets.PROD_REGISTRY_PASSWORD }}" | docker login $REGISTRY -u ${{ secrets.PROD_REGISTRY_USERNAME }} --password-stdin

.github/workflows/deploy-stage.yml

@@ -40,6 +40,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Setup kubectl
+        uses: azure/setup-kubectl@v3
+
       - name: Login to Registry
         run: |
           echo "${{ secrets.PROD_REGISTRY_PASSWORD }}" | docker login $REGISTRY -u ${{ secrets.PROD_REGISTRY_USERNAME }} --password-stdin