Update GH Actions

Author: mattstauffer

.github/workflows/duster-lint.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.ref }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/run-tests.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2