Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/release.yaml

@@ -11,7 +11,7 @@ jobs:
       pull-requests: write
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: "Publish Features"
         uses: devcontainers/action@v1

.github/workflows/test.yaml

@@ -18,7 +18,7 @@ jobs:
           - debian:bullseye
           - ubuntu:latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli
@@ -34,7 +34,7 @@ jobs:
         features:
           - puppet
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli
@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: "Install latest devcontainer CLI"
         run: npm install -g @devcontainers/cli

.github/workflows/validate.yml

@@ -7,7 +7,7 @@ jobs:
   validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: "Validate devcontainer-feature.json files"
         uses: devcontainers/action@v1