Merge pull request #56487 from zhangxiaoyu-zidif/fix-binary-check-glusterfs

Automatic merge from submit-queue (batch tested with PRs 56413, 56322, 56490, 56460, 56487). 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 binary check for glusterfs.go

**What this PR does / why we need it**:
err check can't show that the binary does not exist.
If the binary does not exist, the err still be nil ever.
we should use "test -x" to check if the binary exist.

**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 #56479

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

pkg/volume/glusterfs/glusterfs.go

@@ -238,7 +238,7 @@ func (b *glusterfsMounter) CanMount() error {
 	exe := b.plugin.host.GetExec(b.plugin.GetPluginName())
 	switch runtime.GOOS {
 	case "linux":
-		if _, err := exe.Run("/bin/ls", gciLinuxGlusterMountBinaryPath); err != nil {
+		if _, err := exe.Run("test", "-x", gciLinuxGlusterMountBinaryPath); err != nil {
 			return fmt.Errorf("Required binary %s is missing", gciLinuxGlusterMountBinaryPath)
 		}
 	}