Bump prefix-dev/setup-pixi from 0.8.4 to 0.8.5 in the actions group

Bumps the actions group with 1 update: [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi).


Updates `prefix-dev/setup-pixi` from 0.8.4 to 0.8.5
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.8.4...v0.8.5)

---
updated-dependencies:
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.8.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

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

@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
-    - uses: prefix-dev/[email protected].4
+    - uses: prefix-dev/[email protected].5
       with:
         pixi-version: v0.26.1
         environments: cpu

.github/workflows/python-app.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - uses: prefix-dev/[email protected].4
+      - uses: prefix-dev/[email protected].5
         with:
           pixi-version: v0.26.1
           environments: ${{ matrix.environment }}