Introduce user_provided() as more verbose alternative to none()

[tsmith023]

Closes #1565

[orca-security-eu]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Passed	SAST	0   0   0   0	View in Orca
Passed	Secrets	0   0   0   0	View in Orca
Passed	Vulnerabilities	0   0   0   0	View in Orca

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 87.80%. Comparing base (eed679d) to head (22d6974).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
integration/conftest.py	0.00%	2 Missing ⚠️
weaviate/collections/classes/config_vectorizers.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1643      +/-   ##
==========================================
- Coverage   87.82%   87.80%   -0.02%     
==========================================
  Files         219      219              
  Lines       17485    17491       +6     
==========================================
+ Hits        15356    15358       +2     
- Misses       2129     2133       +4     

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[weaviate-git-bot]

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