chore(deps): update astral-sh/setup-uv action to v6

Author: renovate[bot]

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

@@ -9,7 +9,7 @@ runs:
   using: "composite"
   steps:
     - name: Install UV
-      uses: astral-sh/setup-uv@v5.4
+      uses: astral-sh/setup-uv@v6.0
       id: setup-uv
       with:
         enable-cache: true

.github/workflows/release.yml

@@ -55,7 +55,7 @@ jobs:
           repository: ${{ github.event.pull_request.head.repo.full_name || github.event.repository.full_name }}
 
       - name: Install UV
-        uses: astral-sh/setup-uv@v5.4
+        uses: astral-sh/setup-uv@v6.0
         id: setup-uv
         with:
           enable-cache: false