Specify golang patch version in go.mod

[StephenButtolph]

Why this should be merged

As of go.1.21 - the go.mod file supports enforcing a minimum patch version.

See the go.1.21 release notes:

To improve forwards compatibility, Go 1.21 now reads the go line in a go.work or go.mod file as a strict minimum requirement: go 1.21.0 means that the workspace or module cannot be used with Go 1.20 or with Go 1.21rc1. This allows projects that depend on fixes made in later versions of Go to ensure that they are not used with earlier versions. It also gives better error reporting for projects that make use of new Go features: when the problem is that a newer Go version is needed, that problem is reported clearly, instead of attempting to build the code and printing errors about unresolved imports or syntax errors.

To make these new stricter version requirements easier to manage, the go command can now invoke not just the toolchain bundled in its own release but also other Go toolchain versions found in the PATH or downloaded on demand. If a go.mod or go.work go line declares a minimum requirement on a newer version of Go, the go command will find and run that version automatically. The new toolchain directive sets a suggested minimum toolchain to use, which may be newer than the strict go minimum. See “Go Toolchains” for details.

How this works

+ .9.

How this was tested

• CI

[ceyonur]

👍