Bump astral-sh/setup-uv from 6.6.1 to 6.8.0

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 6.6.1 to 6.8.0.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](astral-sh/setup-uv@557e51d...d0cc045)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: 6.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/cron-zizmor.yml

@@ -19,7 +19,7 @@ jobs:
           persist-credentials: false
 
       - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
+        uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e # v6.8.0
 
       - name: Run zizmor 🌈
         run: uvx zizmor --format sarif . > results.sarif