chore(deps): bump actions/checkout from 5 to 6 (#134)

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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: Update
         # Ensure the lockfile is up-to-date, which is required for publishing
@@ -30,7 +30,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: Clippy
         run: cargo clippy --workspace --tests -- -D warnings
@@ -41,7 +41,7 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - uses: astral-sh/setup-uv@v7
         with:
@@ -59,7 +59,7 @@ jobs:
     name: WASM (Node.js)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: Install wasm-pack
         uses: jetli/wasm-pack-action@v0.4.0
@@ -79,7 +79,7 @@ jobs:
     name: WASM (web)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: Install wasm-pack
         uses: jetli/wasm-pack-action@v0.4.0

.github/workflows/crates-io.yml

@@ -11,7 +11,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: rust-lang/crates-io-auth-action@v1
         id: auth
       - run: cargo publish

.github/workflows/docs.yml

@@ -17,7 +17,7 @@ jobs:
       GIT_COMMITTER_NAME: ci-bot
       GIT_COMMITTER_EMAIL: ci-bot@example.com
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # for git describe
       - name: Install Rust

.github/workflows/npm.yml

@@ -11,7 +11,7 @@ jobs:
     name: Build WASM package
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: Swatinem/rust-cache@v2
       - name: Install wasm-pack
         uses: jetli/wasm-pack-action@v0.4.0

.github/workflows/pypi.yml

@@ -26,7 +26,7 @@ jobs:
           - s390x
           - ppc64le
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.10"
@@ -56,7 +56,7 @@ jobs:
           - aarch64
           - armv7
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.10"
@@ -81,7 +81,7 @@ jobs:
           - x64
           - x86
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.10"
@@ -108,7 +108,7 @@ jobs:
           - runner: macos-14
             target: aarch64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.10"
@@ -127,7 +127,7 @@ jobs:
   sdist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Build sdist
         uses: PyO3/maturin-action@v1
         with: