Migrate golang.org/x/exp/constraints to cmp

Proprietary

Rewrite constraints.Ordered to cmp.Ordered, added to the standard library in Go 1.21. Integer, Float, Signed, Unsigned and Complex have no standard-library counterpart, so a file naming one of them keeps the x/exp import and is left for review.

org.openrewrite.golang.migration.MigrateXExpConstraintsToStdlib
mod run . --recipe=org.openrewrite.golang.migration.MigrateXExpConstraintsToStdlib

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.