updated actions/checkout from v1 to v4 in examples

Author: exelban

README.md

@@ -83,7 +83,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: actions-hub/kubectl@master
         env:
           KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
@@ -101,7 +101,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: actions-hub/kubectl@master
         env:
           KUBE_CONFIG: ${{ secrets.KUBE_CONFIG }}
@@ -125,4 +125,4 @@ To use a specific version of kubectl use:
 ```
 
 ## Licence
-[MIT License](https://github.com/actions-hub/kubectl/blob/master/LICENSE)
+[MIT License](https://github.com/actions-hub/kubectl/blob/master/LICENSE)