Merge pull request #62055 from feiskyer/cni-bin-dir

Automatic merge from submit-queue (batch tested with PRs 61549, 62230, 62055, 61082, 62212). 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>.

Setup default cni dir correctly

**What this PR does / why we need it**:

Kubelet failed to set up pod with error: failed to find plugin "loopback" in path []. This only happens when kubelet's --cni-bin-dir not set. This PR fixes this.

**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 #62054

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

pkg/kubelet/network/cni/cni.go

@@ -75,7 +75,7 @@ func SplitDirs(dirs string) []string {
 
 func ProbeNetworkPlugins(confDir string, binDirs []string) []network.NetworkPlugin {
 	old := binDirs
-	binDirs = make([]string, len(binDirs))
+	binDirs = make([]string, 0, len(binDirs))
 	for _, dir := range old {
 		if dir != "" {
 			binDirs = append(binDirs, dir)