ci(deps): bump astral-sh/setup-uv from 6 to 7

Bumps astral-sh/setup-uv from v6 to v7 with improved cache management and Node.js 24 support. Includes bug fixes for UV_CACHE_DIR handling and performance improvements.

Author: dependabot[bot]

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
         run: docker info
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v6
+        uses: astral-sh/setup-uv@v7
         with:
           version: "0.6.9"