fix: prevent dev dependency downloads at runtime

Add --no-dev to the uv run ENTRYPOINT so that dev dependencies
(black, mypy, pylint, etc.) are not re-downloaded on every action
invocation. The build step already uses --no-dev during uv sync,
but uv run was resolving the full dependency graph at runtime.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: zkoppert

Dockerfile

@@ -30,4 +30,4 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
 ENV PYTHONUNBUFFERED=1
 
 CMD ["/action/workspace/contributors.py"]
-ENTRYPOINT ["uv", "run", "--project", "/action/workspace"]
+ENTRYPOINT ["uv", "run", "--no-dev", "--project", "/action/workspace"]