Add call for provider free registration

[Guillembonet]

Call needed for node ui when checking if free registration is available

[codecov-commenter]

Codecov Report

Merging #4425 (6433a07) into master (cba9791) will decrease coverage by 0.06%.
The diff coverage is 12.50%.

@@            Coverage Diff             @@
##           master    #4425      +/-   ##
==========================================
- Coverage   41.13%   41.06%   -0.07%     
==========================================
  Files         334      334              
  Lines       17892    17900       +8     
==========================================
- Hits         7360     7351       -9     
- Misses       9842     9858      +16     
- Partials      690      691       +1     

Impacted Files	Coverage Δ
tequilapi/endpoints/transactor.go	50.19% <12.50%> (-1.21%)	⬇️
requests/dialer_swarm.go	72.18% <0.00%> (-3.76%)	⬇️
tequilapi/endpoints/sse_handler.go	69.11% <0.00%> (-1.48%)	⬇️
session/pingpong/consumer_balance_tracker.go	56.63% <0.00%> (-0.72%)	⬇️

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