[fix] bump hardcoded envtest version (#450)

We bumped envtest in 83e7008 but forgot to update the binary assets path accordingly.

controller/suite_test.go

@@ -126,7 +126,7 @@ var _ = BeforeSuite(func() {
 		// Note that you must have the required binaries setup under the bin directory to perform
 		// the tests directly. When we run make test it will be setup and used automatically.
 		BinaryAssetsDirectory: filepath.Join("..", "bin", "k8s",
-			fmt.Sprintf("1.28.0-%s-%s", runtime.GOOS, runtime.GOARCH)),
+			fmt.Sprintf("1.30.0-%s-%s", runtime.GOOS, runtime.GOARCH)),
 	}
 
 	var err error