Return executor method so that it can be awaited properly in async client

[tsmith023]

No description provided.

[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

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 86.64%. Comparing base (95b5d76) to head (856305d).
⚠️ Report is 11 commits behind head on main.

Files with missing lines	Patch %	Lines
weaviate/collections/tenants/executor.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2093      +/-   ##
==========================================
- Coverage   86.64%   86.64%   -0.01%     
==========================================
  Files         300      300              
  Lines       23172    23175       +3     
==========================================
+ Hits        20077    20079       +2     
- Misses       3095     3096       +1     

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