chore(deps): update astral-sh/setup-uv action to v6 (#30)

Co-authored-by: felix-renovate[bot] <143542247+felix-renovate[bot]@users.noreply.github.com>

Author: felix-renovate[bot]

.github/workflows/zizmor.yaml

@@ -22,7 +22,7 @@ jobs:
           persist-credentials: false
 
       - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@22695119d769bdb6f7032ad67b9bca0ef8c4a174 # v5
+        uses: astral-sh/setup-uv@c7f87aa956e4c323abf06d5dec078e358f6b4d04 # v6
 
       - name: Run zizmor 🌈
         run: uvx zizmor --format sarif . > results.sarif