chore(deps): update astral-sh/setup-uv action to v8

Author: renovate[bot]

.github/workflows/ci.yml

@@ -8,13 +8,13 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v6
-      - uses: astral-sh/setup-uv@v7
+      - uses: astral-sh/setup-uv@v8.1.0
       - run: uv run nox -s "tests-${{ matrix.python-version }}"
   lint:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: astral-sh/setup-uv@v7
+      - uses: astral-sh/setup-uv@v8.1.0
       - run: uv run nox -s lint
   publish:
     needs: [test, lint]
@@ -24,6 +24,6 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v6
-      - uses: astral-sh/setup-uv@v7
+      - uses: astral-sh/setup-uv@v8.1.0
       - run: uv build
       - uses: pypa/gh-action-pypi-publish@release/v1