chore(deps): bump astral-sh/setup-uv from 6.3.1 to 6.4.3

Bumps [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) from 6.3.1 to 6.4.3.
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](bd01e18f51...e92bafb625)

---
updated-dependencies:
- dependency-name: astral-sh/setup-uv
  dependency-version: 6.4.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/zizmor.yml

@@ -22,7 +22,7 @@ jobs:
           persist-credentials: false
 
       - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@bd01e18f51369d5a26f1651c3cb451d3417e3bba # v6.3.1
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
 
       - name: Run zizmor 🌈
         run: uvx zizmor --format sarif . > results.sarif