Add deferrable support for constraint

[zeotuan]

Address #4292 : Add Deferrable Support

• Foreign: deferrable([deferrable]) can be chained off table.foreign() or column.references()
• allow option object to be used for primary/unique:
  column.unique(indexName | options={[indexName: string], [deferrable: string]});
table.unique(columns,indexName | options={[indexName: string], [deferrable: string]});
column.primary(constraintName | options={[constraintName : string], [deferrable: string]});
table.primary(columns,constraintName | options={[constraintName : string], [deferrable: string]});

[zeotuan]

@kibertoad this test seem to be flaky:

       postgresql | pg
         knex.migrate.latest in parallel
           is not able to run two migrations in parallel when transactions are disabled:

      AssertionError: expected false to equal true
      + expected - actual

      -false
      +true
      
      at /home/runner/work/knex/knex/test/integration/migrate/migration-integration-tests.js:789:33
      at runMicrotasks (<anonymous>)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)```

[kibertoad]

I think idiomatic JS way is Array.isArray()

[kibertoad]

Great job! Could you also create doc PR at https://github.com/knex/documentation?

[zeotuan]

Great job! Could you also create doc PR at https://github.com/knex/documentation?

Documentation added. Can you check it out?