ci: update uv to latest version

Author: ahal

taskcluster/kinds/docker-image/kind.yml

@@ -12,7 +12,7 @@ transforms:
 
 task-defaults:
     args:
-        UV_VERSION: 0.4.9
+        UV_VERSION: 0.6.1
 
 # make a task for each docker-image we might want.  For the moment, since we
 # write artifacts for each, these are whitelisted, but ideally that will change