go: do not use sumdb when running go build during pacmak

[eladb]

:bug: Bug Report

Affected Languages

• [x] Golang
• [ ] TypeScript or Javascript
• [ ] Python
• [ ] Java
• [ ] .NET (C#, F#, ...)

General Information

• JSII Version: 1.20.0
• Platform: any

What is the problem?

By default, go get (and go build) uses go sumdb when resolving dependencies, but since sumdb takes some time to cache the module from GitHub, it makes sense that when we run go build during pacmak, we will disable sumdb by setting GOSUMDB=off.

[RomainMuller]

Are there concrete side-effects / visible pain associated with this?

[MrArnoldPalmer]

I think its purely performance