Specify go compiler minor version

[dandavison]

What was changed?

Specify minor version of Go compiler

Why?

It's now required. See golang/go#65568. Without it on MacOS I get

go: downloading go1.22 (darwin/arm64)
go: download go1.22 for darwin/arm64: toolchain not available

How did you test it?

go mod tidy && go build -o temporal ./cmd/temporal/main.go

[cretz]

At temporalio/sdk-go#1466 (comment), a simple go mod tidy fixed this by adding toolchain. But I'm fine with this too.

[dandavison]

At temporalio/sdk-go#1466 (comment), a simple go mod tidy fixed this by adding toolchain. But I'm fine with this too.

cli(main) go mod tidy
go: downloading go1.22 (darwin/arm64)
go: download go1.22 for darwin/arm64: toolchain not available