chore(actions): Bump actions/checkout from 5 to 6 (#2)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ryan Hallock <89486399+ryanhallock@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
     env:
       ZSTD_VERSION: v1.5.7
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install zstd from source
         run: |
           git clone --branch "$ZSTD_VERSION" --depth 1 https://github.com/facebook/zstd.git zstd

.github/workflows/publish.yml

@@ -13,7 +13,7 @@ jobs:
     env:
       ZSTD_VERSION: v1.5.7
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Install zstd from source
         run: |
           git clone --branch "$ZSTD_VERSION" --depth 1 https://github.com/facebook/zstd.git zstd