chore: bump minimum version to 1.23

[pd93]

Bumps the minimum Go version to v1.23. This allows us to start using 1.23 features in the next version of Task! Tests will now run on 1.23 and 1.24.

[pd93]

Waiting for golangci/golangci-lint#5224 for the lint checks to pass.

Also seems that they have changed the way the versioning information works:

The go build command now sets the main module’s version in the compiled binary based on the version control system tag and/or commit. A +dirty suffix will be appended if there are uncommitted changes. Use the -buildvcs=false flag to omit version control information from the binary.

This actually appears to have broken one of our tests, but should be simple to fix.