chore: Bump to v2.3.0

[edgarrmondragon]

• Use time.monotonic instead of datetime.datetime.now Use time.monotonic() instead of datetime.datetime.now() #23 (from @luccabb)
• Drop support for Python 3.7 packaging: Dropped support for Python 3.7 #49 (from @edgarrmondragon)
• Improve performance of expo by multiplying previous result Improve performance of expo by multiplying previous result #50 (from @whonore)