chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/docs.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # checkout
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # setup taskfile
       - uses: arduino/setup-task@v1

.github/workflows/image.yml

@@ -24,7 +24,7 @@ jobs:
           echo "::set-output name=image::${REPOSITORY//docker-/}"
 
       # checkout
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # setup node
       - uses: actions/setup-node@v4
@@ -120,7 +120,7 @@ jobs:
           REPOSITORY: ${{ github.repository }}
 
       # checkout
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # scan image
       - uses: crazy-max/ghaction-container-scan@v3

.github/workflows/labels.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # checkout
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # sync labels
       - uses: crazy-max/ghaction-github-labeler@v5