Allow old pending migration to be applied

[billy1624]

PR Info

• Closes sea-orm-migrations relaxed file ordering #751

Breaking Changes

• SeaORM migrator will search and apply all pending migration, without enforcing pending migrations must be in front of migrations that has been applied. See below for the in depth explanation

For example...

In the database, there are 2 migrations already been applied:

• m20220120_000001_create_post_table
• m20220520_000001_create_order_table

On the other hand, we have 3 migration files:

• m20220120_000001_create_post_table.rs [Applied]
• m20220519_000001_alter_post_table.rs [Pending]
• m20220520_000001_create_order_table.rs [Applied]

So, we have a old (pending) migration, m20220519_000001_alter_post_table, waiting to be applied. And I have relaxed the constraint, now migrator will only search for pending migrations instead of enforcing all pending migrations to be in front of migrations that has been applied.

[Sytten]

Logic looks good!

[tyt2y3]

Thank you all