bump astral-sh/setup-uv action to v6

Author: 2bndy5

.github/workflows/run-dev-tests.yml

@@ -58,7 +58,7 @@ jobs:
           python-version: 3.x
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v6
         with:
           enable-cache: true
           cache-dependency-glob: "uv.lock"