chore(deps): update astral-sh/setup-uv action to v6.4.3 (#1168)

Co-authored-by: grafanarenovatebot[bot] <146220760+grafanarenovatebot[bot]@users.noreply.github.com>

Author: grafanarenovatebot[bot]

.github/workflows/reusable-zizmor.yml

@@ -361,7 +361,7 @@ jobs:
           fi
 
       - name: Setup UV
-        uses: astral-sh/setup-uv@2c7142f755d7b37bdaea8d226073714c732889fe # v6.4.2
+        uses: astral-sh/setup-uv@e92bafb6253dcd438e0484186d7669ea7a8ca1cc # v6.4.3
         with:
           enable-cache: true
           activate-environment: true