Patch default GOTOOLCHAIN to be =path instead of =auto (Closes: #1040507) (!12) · Merge requests · Debian Go Packaging Team / compiler / golang · GitLab

See https://bugs.debian.org/1040507 and https://go.dev/doc/toolchain, especially https://go.dev/doc/toolchain#:~:text=In%20standard%20Go%20toolchains%2C%20the%20%24GOROOT/go.env%20file%20sets%20the%20default%20GOTOOLCHAIN%3Dauto%2C%20but%20repackaged%20Go%20toolchains%20may%20change%20this%20value.