Fix wrong version specifier

[a3626a]

python -m pip install jupyterlab>=4.0.0a29,<5 is not working and results this error during jupyter_releaser release action.

Running hooks for before-build-npm
/bin/sh: 1: cannot open 5: No such file
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.10.9/x64/bin/jupyter-releaser", line 8, in <module>
    sys.exit(main())
  File "/opt/hostedtoolcache/Python/3.10.9/x64/lib/python3.10/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/opt/hostedtoolcache/Python/3.10.9/x64/lib/python3.10/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/home/runner/work/jupyter_releaser/jupyter_releaser/jupyter_releaser/cli.py", line 119, in invoke
    util.run(hook)
  File "/home/runner/work/jupyter_releaser/jupyter_releaser/jupyter_releaser/util.py", line 91, in run
    raise e
  File "/home/runner/work/jupyter_releaser/jupyter_releaser/jupyter_releaser/util.py", line 83, in run
    process = tee(cmd, **kwargs)
  File "/home/runner/work/jupyter_releaser/jupyter_releaser/jupyter_releaser/tee.py", line 159, in run
    raise subprocess.CalledProcessError(
subprocess.CalledProcessError: Command 'python -m pip install jupyterlab>=4.0.0a29,<5' returned non-zero exit status 2.

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[a3626a]

And from my experience and github action test result, I have also found that this project(package.json) requries @types/react dev dependency, too. However I'm not sure that this cookiecutter template should include @types/react.

[fcollonval]

I'll open a follow up PR to add the @types/react as suggested by @a3626a to fix the CI.

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Congrats on your first merged pull request in this project! :tada: Thank you for contributing, we are very proud of you! :heart: