ci(deps): bump astral-sh/setup-uv from 4 to 6

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 4 to 6.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v4...v6)

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

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

Author: dependabot[bot]

.github/workflows/deploy-docs.yml

@@ -28,7 +28,7 @@ jobs:
           python-version: '3.13'
 
       - name: Install UV
-        uses: astral-sh/setup-uv@v4
+        uses: astral-sh/setup-uv@v6
 
       - name: Cache UV
         uses: actions/cache@v4

.github/workflows/lint.yml

@@ -24,7 +24,7 @@ jobs:
         python-version: "3.13"
 
     - name: Install UV
-      uses: astral-sh/setup-uv@v4
+      uses: astral-sh/setup-uv@v6
 
     - name: Install dependencies
       run: |

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ jobs:
         python-version: 3.13
 
     - name: Install UV
-      uses: astral-sh/setup-uv@v4
+      uses: astral-sh/setup-uv@v6
 
     - name: Update version in pyproject.toml
       run: |

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
 
     - name: Install UV
-      uses: astral-sh/setup-uv@v4
+      uses: astral-sh/setup-uv@v6
 
     - name: Cache UV
       uses: actions/cache@v4