Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/release.yaml

@@ -36,7 +36,7 @@ jobs:
           - {GOOS: darwin, GOARCH: arm64}
           - {GOOS: freebsd, GOARCH: amd64}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
@@ -60,7 +60,7 @@ jobs:
       - version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: docker/metadata-action@v5
         id: meta
         with:

.github/workflows/tests.yaml

@@ -11,7 +11,7 @@ jobs:
     name: Unit tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
@@ -28,7 +28,7 @@ jobs:
     name: Documentation tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
@@ -41,7 +41,7 @@ jobs:
     name: Editorconfig check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: editorconfig-checker/action-editorconfig-checker@main
       - run: editorconfig-checker
         shell: bash
@@ -50,7 +50,7 @@ jobs:
     name: Validate dependabot
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: pipx install check-jsonschema
         shell: bash
       - run: check-jsonschema --builtin-schema vendor.dependabot .github/dependabot.yml
@@ -59,7 +59,7 @@ jobs:
   workflow-validate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: asdf-vm/actions/install@v4
         with:
           tool_versions: |
@@ -72,7 +72,7 @@ jobs:
     name: No 'fix me's check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - run: grep -RHin $(printf Zml4bWUK | base64 -d) . && exit 1 || exit 0 # had to hide the `f i x m e` inside of base64 to not trigger it here too
 
   tests-succeeded: