Bump actions/checkout from 6 to 7 in the github-actions group (#88)

Bumps the github-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: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/publish-docs.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v6

.github/workflows/publish-pypi.yml

@@ -16,7 +16,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Fetch tags

.github/workflows/run-tests.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       # checks out the repo
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       # run pre-commit
       - name: Python setup
         uses: actions/setup-python@v6
@@ -35,7 +35,7 @@ jobs:
       OS: ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Python setup
         uses: actions/setup-python@v6
         with:
@@ -53,7 +53,7 @@ jobs:
       BENCH_ENFORCE: "0"
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Python setup
         uses: actions/setup-python@v6
         with: