chore(deps): update astral-sh/setup-uv action to v8 (#846)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/mypy.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           cache-dependency-glob: "uv.lock"

.github/workflows/tests.yml

@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v7
+        uses: astral-sh/setup-uv@v8.1.0
         with:
           enable-cache: true
           cache-dependency-glob: "uv.lock"