clients: Add a timeout to catalyst client

[victorges]

We were waiting for 6h on "blackholed" requests before trying again.

[codecov]

Codecov Report

Merging #185 (5f59f5e) into main (a16f62c) will increase coverage by 0.03963%.
The diff coverage is 100.00000%.

@@                 Coverage Diff                 @@
##                main        #185         +/-   ##
===================================================
+ Coverage   13.14468%   13.18431%   +0.03963%     
===================================================
  Files             14          14                 
  Lines           2191        2192          +1     
===================================================
+ Hits             288         289          +1     
  Misses          1882        1882                 
  Partials          21          21                 

Impacted Files	Coverage Δ
clients/catalyst.go	84.14634% <100.00000%> (+0.19572%)	⬆️

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Impacted Files	Coverage Δ
clients/catalyst.go	84.14634% <100.00000%> (+0.19572%)	⬆️