Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/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
...

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

Author: dependabot[bot]

.github/workflows/build_wheels_on_release.yml

@@ -15,7 +15,7 @@ jobs:
         os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, macos-15-intel, macos-14]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v4.0.0
@@ -39,7 +39,7 @@ jobs:
     name: Make SDist
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
       with:
         fetch-depth: 0  # Optional, use if you use setuptools_scm
         submodules: true  # Optional, use if you have submodules

.github/workflows/quick_test_and_codecov.yml

@@ -17,7 +17,7 @@ jobs:
           # - "3.15"
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
@@ -39,7 +39,7 @@ jobs:
     name: Generate codecov
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
 
     - uses: actions/setup-python@v6
       name: Install Python
@@ -64,7 +64,7 @@ jobs:
     # if: false
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v4.0.0