rpc: add query consensus validators

[Fraccaman]

Describe your changes

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

Project coverage is 72.68%. Comparing base (ee4649b) to head (c18b6cb).
Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/sdk/src/rpc.rs	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3734      +/-   ##
==========================================
- Coverage   72.69%   72.68%   -0.02%     
==========================================
  Files         338      338              
  Lines      104321   104331      +10     
==========================================
- Hits        75840    75836       -4     
- Misses      28481    28495      +14     

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[brentstone]

@Fraccaman do you intend to add more code here or is this all of it?

[Fraccaman]

nope