chore(vendir): manage kubectl version

We use vendir to manage kubectl version, so renovate will be able to bump it. Warning, kubectl and k3s should be consistent, but this consistency in not managed automatically.

vendir.yml

@@ -7,6 +7,15 @@ directories:
   contents:
 
   # validates checksums automatically from release notes
+  - path: github.com/kubernetes/kubectl
+    githubRelease:
+      slug: kubernetes/kubernetes
+      tag: v1.24.17
+      disableAutoChecksumValidation: true
+      http:
+        # The url parameter of http can interpolate the tag of the GitHub release using the {tag} token.
+        url: https://dl.k8s.io/release/{tag}/bin/linux/amd64/kubectl
+    permission: 0755
 
   - path: github.com/k3s-io/k3s
     githubRelease:
@@ -23,7 +32,7 @@ directories:
     githubRelease:
       slug: derailed/k9s
       tag: v0.28.0
-      disableAutoChecksumValidation: true 
+      disableAutoChecksumValidation: true
       assetNames: # only download specific assets (optional; v0.12.0+), see k3s declaration for details.
       - "k9s_Linux_amd64.tar.gz"