Speedup RNG copy in non-mutable RVs

[emekaokoli19]

Description

This PR improves how RandomVariable copies RNG state when inplace=False.

Related Issue

• Closes Faster deepcopy of RNG in RandomVariables #1708
• Related to #

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

@ricardoV94 I think this closes the #1708 using the code you provided, I just added some tests

[ricardoV94]

Also make use of the new helper here:

pytensor/pytensor/link/numba/dispatch/random.py

Line 37 in c77d1ef

new_rng = deepcopy(rng)

[emekaokoli19]

@ricardoV94 Thank you for the checks. I have made the corrections