go.mod: change version from 1.23 to 1.23.0

[chibby0ne]

1.23 is not a downloable release. Go mod should list the specific toolchain that can be downloaded as mentioned here: golang/go#62278 (comment) Otherwise opening the project having a different version installed will result in errors, e.g:

$ go version
go: downloading go1.23 (linux/amd64)
go: download go1.23 for linux/amd64: toolchain not available

[konrad-ohms]

Thanks @chibby0ne, good catch

[konrad-ohms]

I am still wondering why they document it differently: https://go.dev/doc/modules/gomod-ref

[chibby0ne]

Mmm that's a very good catch!
Maybe that snippet was done whilst using a development release and so, they had to specify the toolchain using GO_TOOLCHAIN?
Or maybe that snippet was done before this "go toolchain" thing was defined and so the go cli wouldn't try to download the exact version written in the go.mod and so it wouldn't result in an error?
In any case, a case can be made of proposing a doc change with another more up to date code snippet with less surprising behavior if one were to recreate it.