Build(deps): Bump actions/checkout from 5 to 6

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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: prefix-dev/setup-pixi@v0.9.3
         with:
@@ -49,7 +49,7 @@ jobs:
             os: ubuntu-latest
             rust: stable
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions-rs/toolchain@v1
         with:
@@ -75,7 +75,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: prefix-dev/setup-pixi@v0.9.3
         with:

.github/workflows/draft-pdf.yml

@@ -11,7 +11,7 @@ jobs:
     name: Paper Draft
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Build draft PDF
         uses: openjournals/openjournals-draft-action@master
         with:

.github/workflows/python-doc.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: prefix-dev/setup-pixi@v0.9.3
         with:

.github/workflows/python-test.yml

@@ -12,7 +12,7 @@ jobs:
     name: Ruff
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: chartboost/ruff-action@v1
         with:
           version: 0.7.3
@@ -44,7 +44,7 @@ jobs:
             os: ubuntu-latest
             rust: stable
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: prefix-dev/setup-pixi@v0.9.3
         with:

.github/workflows/release-python.yml

@@ -29,7 +29,7 @@ jobs:
           # - runner: ubuntu-latest
           #   target: ppc64le
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true
@@ -59,7 +59,7 @@ jobs:
           - runner: windows-latest
             target: x86
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true
@@ -89,7 +89,7 @@ jobs:
           - runner: macos-14
             target: aarch64
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true
@@ -111,7 +111,7 @@ jobs:
   sdist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true