refactor: upgrade to gts@1

[kjin]

No description provided.

[codecov]

Codecov Report

Merging #1031 into master will increase coverage by 0.01%.
The diff coverage is 94.79%.

@@            Coverage Diff             @@
##           master    #1031      +/-   ##
==========================================
+ Coverage   94.95%   94.97%   +0.01%     
==========================================
  Files          96       96              
  Lines        6249     6285      +36     
  Branches      475      492      +17     
==========================================
+ Hits         5934     5969      +35     
- Misses        160      161       +1     
  Partials      155      155

Impacted Files	Coverage Δ
src/cls/async-listener.ts	100% <ø> (ø)	⬆️
src/cls/null.ts	88.88% <ø> (ø)	⬆️
src/trace-labels.ts	100% <ø> (ø)	⬆️
src/cls/singular.ts	83.33% <ø> (ø)	⬆️
src/trace.ts	100% <100%> (ø)	⬆️
test/plugins/test-trace-http.ts	100% <100%> (ø)	⬆️
test/nocks.ts	52.38% <100%> (ø)	⬆️
test/trace.ts	93.5% <100%> (ø)	⬆️
src/plugins/plugin-bluebird.ts	100% <100%> (ø)	⬆️
test/plugins/test-trace-mongoose-async-await.ts	100% <100%> (ø)	⬆️
... and 54 more

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