try to fix functional macos test

.github/workflows/pr.yml

@@ -198,7 +198,6 @@ jobs:
           go-version: '1.14.6'
           stable: true
       - name: Install gopogh
-
         shell: bash
         run: |
           curl -LO https://github.com/medyagh/gopogh/releases/download/v0.2.4/gopogh-darwin-amd64

test/integration/functional_test.go

@@ -518,7 +518,7 @@ func validateCacheCmd(ctx context.Context, t *testing.T, profile string) {
 			}
 
 			img := "minikube-local-cache-test:" + profile
-			_, err = Run(t, exec.CommandContext(ctx, "docker", "build", "-t", img, dname))
+			_, err = Run(t, exec.CommandContext(ctx, "sudo", "docker", "build", "-t", img, dname))
 			if err != nil {
 				t.Errorf("failed to build docker image: %v", err)
 			}