fix!(blob/module): fix api by changing variadic params to a slice

[vgonkivs]

Overview

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

[distractedm1nd]

next step is adding tests for our most critical rpc methods

[Wondertan]

Let's double check we removed all the variadics in all modules

[codecov-commenter]

Codecov Report

Merging #2293 (94854d4) into main (1c1327b) will decrease coverage by 0.04%.
The diff coverage is 25.00%.

@@            Coverage Diff             @@
##             main    #2293      +/-   ##
==========================================
- Coverage   50.80%   50.77%   -0.04%     
==========================================
  Files         154      154              
  Lines        9663     9663              
==========================================
- Hits         4909     4906       -3     
- Misses       4328     4331       +3     
  Partials      426      426              

Impacted Files	Coverage Δ
api/gateway/state.go	0.00% <0.00%> (ø)
state/core_access.go	27.83% <ø> (ø)
blob/service.go	70.93% <33.33%> (ø)

... and 4 files with indirect coverage changes

[distractedm1nd]

Looks great. Another great test to add would be the full blob module lifecycle over RPC (trying to use all the methods)

[vgonkivs]

closing in favour of #2298