build: add uv lock cmd to update duty

duties.py

@@ -33,6 +33,7 @@ def clean(ctx):
 @duty(capture=False)
 def update(ctx):
     """Update all environment packages using pip directly."""
+    ctx.run("uv lock --upgrade")
     ctx.run("uv sync --all-extras")
     ctx.run("uv pip install google-generativeai")