ci: pin uv version

Author: Logic-py

.github/actions/setup-env/action.yml

@@ -11,7 +11,7 @@ runs:
   using: "composite"
   steps:
     - name: Install uv
-      uses: astral-sh/setup-uv@v8
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
       with:
         enable-cache: true