Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [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/v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/linux-musl.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Host - checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false

.github/workflows/linux.yml

@@ -14,7 +14,7 @@ jobs:
     container:
       image: fedora:40
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: dnf install -y ninja-build cmake gtest-devel re2c clang util-linux clang-tools-extra
       - name: Linting
@@ -54,7 +54,7 @@ jobs:
     runs-on: ${{ matrix.host-os }}
     container: rockylinux/rockylinux:8
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: codespell-project/actions-codespell@master
         with:
           ignore_words_list: fo,wee,addin,notin
@@ -122,7 +122,7 @@ jobs:
     runs-on: ${{ matrix.host-os }}
     container: ${{ matrix.image }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install dependencies
         run: |
           apt update
@@ -180,7 +180,7 @@ jobs:
     runs-on: ${{ matrix.host-os }}
     container: ${{ matrix.image }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false #https://docs.zizmor.sh/audits/#artipacked
       - name: Install dependencies

.github/workflows/macos.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-13
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Install dependencies
       run: brew install re2c

.github/workflows/windows.yml

@@ -22,7 +22,7 @@ jobs:
           suffix: 'arm64'
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Install dependencies
       run: choco install re2c