Bump actions/checkout from 6 to 7 in the actions group

Bumps the actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 6 to 7
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

Author: dependabot[bot]

.github/workflows/build-test-publish.yml

@@ -27,7 +27,7 @@ jobs:
             cmake-build-type: "MinSizeRel"
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: Ex
 
@@ -140,7 +140,7 @@ jobs:
             cmake-build-type: "MinSizeRel"
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: Ex
 
@@ -234,7 +234,7 @@ jobs:
         os: [ubuntu-24.04, windows-2022, macos-14]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Python 3.11
         uses: actions/setup-python@v6
         with:
@@ -268,7 +268,7 @@ jobs:
             cmake-build-type: "Release"
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: Ex
           submodules: recursive

.github/workflows/linkcheck.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Check links
         id: lychee
         uses: lycheeverse/lychee-action@v2

.github/workflows/lint.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
       with:
         # Full git history is needed to get a proper
         # list of changed files within `super-linter`