Merge pull request #64457 from dashpole/node_e2e_dynamic

Automatic merge from submit-queue (batch tested with PRs 64456, 64457, 64472). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix dynamic kubelet config tests

**What this PR does / why we need it**:
The default for dynamic kubelet config is now true, so if it is unset, assume it is enabled for testing.

**Release note**:
```release-note
NONE
```

/sig node
/kind bug
/priority critical-urgent

/assign @mtaufen

test/e2e_node/util.go

@@ -138,7 +138,7 @@ func isKubeletConfigEnabled(f *framework.Framework) (bool, error) {
 	}
 	v, ok := cfgz.FeatureGates[string(features.DynamicKubeletConfig)]
 	if !ok {
-		return false, nil
+		return true, nil
 	}
 	return v, nil
 }