Bump actions/checkout from 5 to 6 in the actions group (#665)

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


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)

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

@@ -16,7 +16,7 @@ jobs:
     steps:
       # We need the full repo to avoid this issue
       # https://github.com/actions/checkout/issues/23
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/cd.yml

@@ -17,7 +17,7 @@ jobs:
       id-token: write
     steps:
       # retrieve your distributions here
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Set up Python

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

@@ -32,7 +32,7 @@ jobs:
         shell: bash -l {0}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup environment
         uses: mamba-org/setup-micromamba@v2
         with:
@@ -76,7 +76,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Python 3.11