Bump actions/checkout from 3 to 4

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] <support@github.com>

.github/workflows/checks.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: install dependencies
       run: npm install
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - uses: actions/setup-python@v4
       with:
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: run misspell
       run: make misspell
@@ -48,7 +48,7 @@ jobs:
     name: markdownlinkcheck
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Run link check
       uses: gaurav-nelson/github-action-markdown-link-check@v1
       with:
@@ -60,7 +60,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: run sanitycheck.py
       run: python3 ./internal/tools/sanitycheck.py
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: install tools
       run: make install-tools
     - name: run checklicense

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

@@ -13,6 +13,6 @@ jobs:
   validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: gradle/wrapper-validation-action@v1.0.6

.github/workflows/release.yml

@@ -80,7 +80,7 @@ jobs:
             context: ./
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0