Resolve Deprecated Numpy Attribute Error np.int

[eliseoe]

Error Message:
AttributeError: module 'numpy' has no attribute 'int'.

Description:
The commit with ID MagriLab/EchoStateNetwork@9915390 has introduced issues related to the deprecation of np.int in NumPy, resulting in the mentioned attribute error. I believe this is because there is no compatibility with newer versions of NumPy. We should either agree on the same numpy version or resolve this for future versions.

Current Environment:
NumPy: 1.25.2 (most recent is 1.26.2)

see all details @ MagriLab/EchoStateNetwork#10

Resolution Steps:

Replace all instances of np.int with int in the file 'anaconda3\envs\myenv\Lib\site-packages\skopt\space\transformers.py'.
Restart the kernel (or exit PyCharm and open it again).
Run the code again.
This fixed the issue for me.

Closing this issue now.