Bump the actions group across 1 directory with 3 updates

Bumps the actions group with 3 updates in the / directory: [actions/checkout](https://github.com/actions/checkout), [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) and [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages).


Updates `actions/checkout` from 6 to 7
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

Updates `prefix-dev/setup-pixi` from 0.9.4 to 0.9.6
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.9.4...v0.9.6)

Updates `peaceiris/actions-gh-pages` from 4.0.0 to 4.1.0
- [Release notes](https://github.com/peaceiris/actions-gh-pages/releases)
- [Changelog](https://github.com/peaceiris/actions-gh-pages/blob/main/CHANGELOG.md)
- [Commits](peaceiris/actions-gh-pages@v4.0.0...v4.1.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.9.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions
- dependency-name: peaceiris/actions-gh-pages
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/deploy-gh-pages.yml

@@ -14,10 +14,10 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
       with:
         fetch-depth: 0
-    - uses: prefix-dev/setup-pixi@v0.9.4
+    - uses: prefix-dev/setup-pixi@v0.9.6
       with:
 #        pixi-version: v0.23.0
         environments: doc
@@ -28,7 +28,7 @@ jobs:
 
     - name: Update the main gh-page website
       if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
-      uses: peaceiris/actions-gh-pages@v4.0.0
+      uses: peaceiris/actions-gh-pages@v4.1.0
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./doc/_build/html

.github/workflows/draft-pdf.yml

@@ -11,7 +11,7 @@ jobs:
     name: Paper Draft
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Build draft PDF
         uses: openjournals/openjournals-draft-action@master
         with:

.github/workflows/lint.yml

@@ -13,8 +13,8 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: prefix-dev/setup-pixi@v0.9.4
+      - uses: actions/checkout@v7
+      - uses: prefix-dev/setup-pixi@v0.9.6
         with:
 #          pixi-version: v0.23.0
           environments: lint

.github/workflows/publish.yml

@@ -13,7 +13,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v6

.github/workflows/python-app.yml

@@ -17,8 +17,8 @@ jobs:
         environment: [ test ]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v6
-      - uses: prefix-dev/setup-pixi@v0.9.4
+      - uses: actions/checkout@v7
+      - uses: prefix-dev/setup-pixi@v0.9.6
         with:
 #          pixi-version: v0.23.0
           environments: ${{ matrix.environment }}