Add dimensions parameter to text2vec_voyageai methods

[databyjp]

#1869

• Add dimensions parameter to text2vec_voyageai methods
• Reorder params alphabetically

[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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.70%. Comparing base (a226ea5) to head (2575f58).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1870      +/-   ##
==========================================
- Coverage   86.86%   86.70%   -0.16%     
==========================================
  Files         273      273              
  Lines       19105    19680     +575     
==========================================
+ Hits        16596    17064     +468     
- Misses       2509     2616     +107     

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