vet fix & deps

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #1521 (e02dcb8) into master (48cfecd) will increase coverage by 0.04%.
The diff coverage is n/a.

❗ Current head e02dcb8 differs from pull request most recent head 7f32a6e. Consider uploading reports for the commit 7f32a6e to get more accurate results

@@            Coverage Diff             @@
##           master    #1521      +/-   ##
==========================================
+ Coverage   52.61%   52.65%   +0.04%     
==========================================
  Files         476      476              
  Lines       59720    59720              
==========================================
+ Hits        31420    31447      +27     
+ Misses      25936    25921      -15     
+ Partials     2364     2352      -12     

Impacted Files	Coverage Δ
consensus/cuckoo/consensus.go	7.24% <ø> (ø)

... and 14 files with indirect coverage changes