"uv" should be a dev dependency, but do not need to run mypy

Author: mccalluc

README.md

@@ -77,6 +77,4 @@ make check-tests
 make check-types
 make check-lint
 make check-format
-# TODO: Requires uv.
-# make ci-check-mypy-can-run
 ```

pyproject.toml

@@ -117,7 +117,7 @@ dev = [
     "google-generativeai;python_version>='3.9'",
     "langchain_core",
     # langsmith (needed for langchain_core) versions >= 0.3
-    # (up to at least 0.3.2 as of 2025-01-29) 
+    # (up to at least 0.3.2 as of 2025-01-29)
     # cause an `argparse.ArgumentError` when running `pytest`.
     # https://github.com/posit-dev/py-shiny/issues/1829
     "langsmith<0.3",
@@ -126,6 +126,7 @@ dev = [
     "tokenizers",
     "aiohttp",
     "beautifulsoup4",
+    "uv",
 ]
 doc = [
     "jupyter",