Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...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/codeql-analysis.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/coverage.yml

@@ -17,7 +17,7 @@ jobs:
           go-version: ^1.15
 
       - name: Checkout codebase
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Cache go module
         uses: actions/cache@v2

.github/workflows/linter.yml

@@ -22,7 +22,7 @@ jobs:
           go-version: ^1.15
 
       - name: Checkout codebase
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2

.github/workflows/sign.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout default branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Grant it execution permission
         run: |

.github/workflows/test.yml

@@ -29,7 +29,7 @@ jobs:
           go-version: ^1.15
 
       - name: Checkout codebase
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Cache go module
         uses: actions/cache@v2

.github/workflows/updateGeofile.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Download
         run: |