Merge pull request #60682 from hanxiaoshuai/update0302

Automatic merge from submit-queue. 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>.

update Mount propagation version in comment

**What this PR does / why we need it**:
Mount propagation feature was moved to beta in PR [#59252](https://github.com/kubernetes/kubernetes/pull/59252)， so update the comment.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #60657 

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

pkg/apis/core/types.go

@@ -1702,8 +1702,7 @@ type VolumeMount struct {
 	// mountPropagation determines how mounts are propagated from the host
 	// to container and the other way around.
 	// When not set, MountPropagationHostToContainer is used.
-	// This field is alpha in 1.8 and can be reworked or removed in a future
-	// release.
+	// This field is beta in 1.10.
 	// +optional
 	MountPropagation *MountPropagationMode
 }