Bump astral-sh/setup-uv from 6 to 7 (#249)

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 6 to 7.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@v6...v7)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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/tests.yml

@@ -24,7 +24,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
       - name: Run tests
         run: |
           uv run --extra test --python ${{ matrix.python-version }} pytest -n auto tests
@@ -39,7 +39,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
       - name: Run tests
         run: |
           uv run --extra test --extra comparison --python 3.12 pytest -n auto tests
@@ -54,7 +54,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
       - name: Run tests
         run: |
           uv run --extra test --extra doctest --python 3.12 pytest --doctest-modules -v src/tinygp
@@ -68,7 +68,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
       - name: Build the distribution
         run: uv build
       - name: Check the distribution