chore(deps): bump astral-sh/setup-uv from 5 to 6 in the actions group

Bumps the actions group with 1 update: [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv).


Updates `astral-sh/setup-uv` from 5 to 6
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v5...v6)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@v6
       - name: Install nox
         run: uv tool install nox
       - uses: pre-commit/[email protected]
@@ -116,7 +116,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@v6
         if: matrix.python-version != 'pypy-3.8'
 
       - name: Install package (uv)
@@ -177,7 +177,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@v6
 
       # The min requirements are not compatible with some of the extra test
       # deps, so limit to just built-in deps.
@@ -347,7 +347,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - uses: astral-sh/setup-uv@v5
+      - uses: astral-sh/setup-uv@v6
 
       - uses: wntrblm/[email protected]
         with: