Rename setup-kubernetes action file

Signed-off-by: Stefan Prodan <[email protected]>

Author: stefanprodan

.github/actions/setup-kubernetes/action.yaml renamed to .github/actions/setup-kubernetes/action.yml

@@ -4,7 +4,7 @@ updates:
   - package-ecosystem: "github-actions"
     directories:
       - "/"
-      - "/.github/actions/*"
+      - "/.github/actions/*/action.yml"
     groups:
       actions:
         patterns:

.github/dependabot.yaml

@@ -160,7 +160,7 @@ jobs:
 
 ### Setup Kubernetes
 
-The [setup-kubernetes](.github/actions/setup-kubernetes/action.yaml) composite action configures
+The [setup-kubernetes](.github/actions/setup-kubernetes/action.yml) composite action configures
 the GitHub runner to build and test Flux controllers with Kubernetes Kind clusters.
 
 Example usage: