chore(ci): bump prefix-dev/setup-pixi from 0.8.10 to 0.8.11 (#155)

Bumps [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) from 0.8.10 to 0.8.11.
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.8.10...v0.8.11)

---
updated-dependencies:
- dependency-name: prefix-dev/setup-pixi
  dependency-version: 0.8.11
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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/cpp-test.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Checkout source code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
-      - uses: prefix-dev/setup-pixi@v0.8.10
+      - uses: prefix-dev/setup-pixi@v0.8.11
         with:
           environments: format-cpp
 
@@ -39,7 +39,7 @@ jobs:
       - name: Checkout source code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
-      - uses: prefix-dev/setup-pixi@v0.8.10
+      - uses: prefix-dev/setup-pixi@v0.8.11
         with:
           environments: test-cpp