chore(deps): update astral-sh/setup-uv action to v7

Author: renovate[bot]

.github/workflows/python-app.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
     - name: Install uv
-      uses: astral-sh/setup-uv@v6
+      uses: astral-sh/setup-uv@v7
       with:
         version: 'latest'
     - run: uv sync