Fixes#4345
When creating a crew with 'crewai create crew test', the name 'test'
conflicts with the 'test' script entry in pyproject.toml, causing a
duplicate key error.
This change adds validation to reject project names that would conflict
with reserved script names in the generated pyproject.toml:
For crews: run_crew, train, replay, test, run_with_trigger
For flows: kickoff, run_crew, plot, run_with_trigger
The fix provides a clear error message asking users to choose a
different name.
Co-Authored-By: João <joao@crewai.com>
