fix incorrect version info on check-update

[profclems]

Fixes #282

[codecov]

Codecov Report

Merging #308 (ff2e936) into trunk (1e7c17e) will increase coverage by 0.56%.
The diff coverage is 84.37%.

@@            Coverage Diff             @@
##            trunk     #308      +/-   ##
==========================================
+ Coverage   47.41%   47.97%   +0.56%     
==========================================
  Files         122      122              
  Lines        6388     6386       -2     
==========================================
+ Hits         3029     3064      +35     
+ Misses       3029     2989      -40     
- Partials      330      333       +3     

Impacted Files	Coverage Δ
cmd/glab/main.go	42.25% <0.00%> (ø)
commands/update/check_update.go	84.00% <84.00%> (ø)
commands/root.go	75.00% <100.00%> (ø)
commands/update/update.go	100.00% <100.00%> (+100.00%)	⬆️
internal/request/request.go	73.33% <0.00%> (+73.33%)	⬆️

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