Bump actions/checkout from 3 to 4 (#500)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/deploy.yml

@@ -11,9 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out docs
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check out website
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: dita-ot/website
           token: ${{ secrets.COMMITTER_TOKEN }}

.github/workflows/gradle-wrapper-validation.yml

@@ -9,5 +9,5 @@ jobs:
     name: 'Validation'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gradle/wrapper-validation-action@v1

.github/workflows/prettier.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Make sure the actual branch is checked out when running on pull requests
           ref: ${{ github.ref }}

.github/workflows/preview.yml

@@ -17,9 +17,9 @@ jobs:
       WEBSITE_BRANCH: 'master'
     steps:
       - name: Check out docs
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check out website
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: dita-ot/website
           ref: ${{ env.WEBSITE_BRANCH }}

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
           fi
 
       - name: Check out docs
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ env.TAG }}
 
@@ -51,7 +51,7 @@ jobs:
           java-version: 17
 
       - name: Check out website
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: dita-ot/website
           token: ${{ secrets.COMMITTER_TOKEN }}