Patch default GOTOOLCHAIN to be =path instead of =auto (Closes: #1040507)

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.

added 1 commit

• 0fd26a45 - Patch default GOTOOLCHAIN to be =path instead of =auto (Closes: #1040507)

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Tested and verified that this does apply correctly, and is overridden by the environment variable correctly:

$ /usr/lib/go-1.21/bin/go env GOTOOLCHAIN
path
$ GOTOOLCHAIN=auto /usr/lib/go-1.21/bin/go env GOTOOLCHAIN
auto