Bump the github-actions group across 1 directory with 2 updates (#82)

Bumps the github-actions group with 2 updates in the / directory: [actions/checkout](https://github.com/actions/checkout) and [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi).


Updates `actions/checkout` from 4.2.2 to 5.0.0
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@11bd719...08c6903)

Updates `prefix-dev/setup-pixi` from 0.8.12 to 0.9.0
- [Commits](prefix-dev/setup-pixi@307e5e5...fef5c95)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 5.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-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/pypi.yml

@@ -17,7 +17,7 @@ jobs:
     permissions:
       id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
       with:
         # Should be enough for setuptools-scm
         fetch-depth: 100

.github/workflows/test.yaml

@@ -14,11 +14,11 @@ jobs:
       actions: none
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
         with:
           persist-credentials: false
       - name: Setup pixi
-        uses: prefix-dev/setup-pixi@307e5e5842748e3752d5178fbd158e0a6c1b55ff  # v0.8.12
+        uses: prefix-dev/setup-pixi@fef5c9568ca6c4ff7707bf840ab0692ba3f08293  # v0.9.0
         with:
           cache: true