ci: update setup-uv

Author: monosans

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
         with:
           persist-credentials: false
       - run: cp .env.example .env
-      - uses: astral-sh/setup-uv@v7
+      - uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
       - run: uv run --extra local --locked mypy .
@@ -67,7 +67,7 @@ jobs:
       - uses: actions/checkout@v6
         with:
           persist-credentials: false
-      - uses: astral-sh/setup-uv@v7
+      - uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: false
       - run: uv tool run --no-cache --python 3.14 prek run --all-files --show-diff-on-failure