build(deps): bump the github-actions group across 1 directory with 2 updates

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 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 0.9.6 to 0.10.0
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.9.6...v0.10.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/security-scan.yaml

@@ -22,8 +22,8 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-    - uses: actions/checkout@v6
-    - uses: prefix-dev/setup-pixi@v0.9.6
+    - uses: actions/checkout@v7
+    - uses: prefix-dev/setup-pixi@v0.10.0
       with:
         pixi-version: v0.68.1