Update go version reference from 1.23 to 1.23.0

[kfri-lmco]

Update go version reference from 1.23 to 1.23.0

Summary

Updates go version reference in go.mod to 1.23.0. The current go reference is invalid (1.23) causing an error when attempting to build the lifecycle component.

Documentation instructs users to make the lifecycle package (eg: make build-darwin-amd64). This instruction fails when attempting to download the referenced version of go with a message like:

go: downloading go1.23 (darwin/amd64)
go: download go1.23 for darwin/amd64: toolchain not available
make: *** [build-darwin-amd64-lifecycle] Error 1

Release notes

Fixes make errors based on invalid go version reference in go.mod file. Updates go version reference to 1.23.0.

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[jabrown85]

@kfri-lmco - what version of go were you using to get that error? I'm not overly familiar with the new toolchain stuff but my test worked as is using golang:1.22.10-alpine as my base go version that didn't already match the minor version.

/workspace # go build ./...
go: go.mod requires go >= 1.23 (running go 1.22.10; GOTOOLCHAIN=local)

/workspace # GOTOOLCHAIN=auto go build ./...
go: downloading go1.23.0 (linux/arm64)
go: downloading github.com/buildpacks/imgutil v0.0.0-20240605145725-186f89b2d168
...

[gogolok]

That's strange. go 1.23 is valid according to https://go.dev/doc/modules/gomod-ref#go . I would also be interested in the version trying that update.

On the other hand, there is some interesting discussion in golang/go#62278