Bump the actions group with 2 updates

Bumps the actions group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [zizmorcore/zizmor-action](https://github.com/zizmorcore/zizmor-action).


Updates `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](actions/checkout@v5...v6)

Updates `zizmorcore/zizmor-action` from 9d985c6a33094e632ee3e60d1924caa8588dc5db to c0e2b1c877e25a91d1d747c438d49199cad29698
- [Release notes](https://github.com/zizmorcore/zizmor-action/releases)
- [Commits](zizmorcore/zizmor-action@9d985c6...c0e2b1c)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: zizmorcore/zizmor-action
  dependency-version: c0e2b1c877e25a91d1d747c438d49199cad29698
  dependency-type: direct:production
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/dist-python.yml

@@ -30,7 +30,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/test-python.yml

@@ -28,7 +28,7 @@ jobs:
           - ["Replica Sets", "tests/test_replica_sets.py", "3.12"]
           - ["Sharded", "tests/test_sharded_clusters.py", "3.14"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         with:

.github/workflows/zizmor.yml

@@ -14,8 +14,8 @@ jobs:
       security-events: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Run zizmor 🌈
-        uses: zizmorcore/zizmor-action@9d985c6a33094e632ee3e60d1924caa8588dc5db
+        uses: zizmorcore/zizmor-action@c0e2b1c877e25a91d1d747c438d49199cad29698