Skip nested modules when configuring flyway

[ooraini]

The SpringModulithFlywayMigrationStrategy default to creating flyway tables for all modules even nested ones. Nested modules are part of a larger module and typically share the DB schema, therefore their migrations are bundled with their top level module.

It would be nice if there was a property to configure the modulith flyway strategy:

spring.modulith.runtime.flyway-strategy: all

with possible values including [all, top-level]

Also, some modules don't have any data requirement, so skipping them entirely makes sense:

spring.modulith.runtime.flyway-skip: ['email']