build(deps): bump github.com/vmware/govmomi from 0.29.0 to 0.30.5

Bumps [github.com/vmware/govmomi](https://github.com/vmware/govmomi) from 0.29.0 to 0.30.5.
- [Release notes](https://github.com/vmware/govmomi/releases)
- [Changelog](https://github.com/vmware/govmomi/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vmware/govmomi/compare/v0.29.0...v0.30.5)

---
updated-dependencies:
- dependency-name: github.com/vmware/govmomi
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/vmware/govmomi/govc/flags/debug.go

@@ -347,6 +347,9 @@ func (v *verbose) missingSet(o types.ManagedObjectReference, m []types.MissingPr
 
 func (v *verbose) updateSet(u *types.UpdateSet) []string {
 	var s []string
+	if u == nil {
+		return s
+	}
 	for _, f := range u.FilterSet {
 		for _, o := range f.ObjectSet {
 			for _, c := range o.ChangeSet {