feat: add kubectl installation step in CI workflow

.gitea/workflows/ci.yml

@@ -50,6 +50,12 @@ jobs:
         with:
           name: image-tag
 
+      - name: Instaliraj kubectl
+        run: |
+          curl -LO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+          chmod +x kubectl
+          mv kubectl /usr/local/bin/
+
       - name: Postavi kubeconfig
         run: |
           mkdir -p ~/.kube