Bump prefix-dev/setup-pixi from 0.6.0 to 0.7.0

Bumps [prefix-dev/setup-pixi](https://github.com/prefix-dev/setup-pixi) from 0.6.0 to 0.7.0.
- [Release notes](https://github.com/prefix-dev/setup-pixi/releases)
- [Commits](prefix-dev/setup-pixi@v0.6.0...v0.7.0)

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

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

Author: dependabot[bot]

.github/workflows/main.yml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v4
       - if: matrix.os == 'macos-latest' || matrix.os == 'windows-latest'
         uses: julia-actions/setup-julia@v2
-      - uses: prefix-dev/setup-pixi@v0.6.0
+      - uses: prefix-dev/setup-pixi@v0.7.0
         with:
           pixi-version: v0.20.1
           # cache: true