Without `permit`, `AC::Parameters#to_query` raise
`AC::UnfilteredParameters`.

```ruby
params = ActionController::Parameters.new({
  name: "David",
  nationality: "Danish"
})

params.to_query
# => ActionController::UnfilteredParameters: unable to convert unpermitted parameters to hash
```

Remove unused defined association

Remove FK together with column in MySQL

Unlike with other databses, MySQL doesn't let you remove the column
if there's a FK on this column.

For better developer experience we want to remove the FK together with
the column.

Raise on create for singular association when parent is unpersisted

Fix `create_table` with query from relation

Don't require 'unscope' to be the same on both sides of an 'or' relation

Use nullable `id` column instead of a primary key

Remove references to deprecared raise_runtime_errors from documentation, which is always enabled now. Ref: https://github.com/rails/sprockets-rails/commit/655b93bffc6f51b96a7cc097f9010942693bfaae and https://github.com/rails/rails/pull/24070 . Fixes #29483 [ci skip] (#29484)

Add the `<app_root>/test` dir to the `$LOAD_PATH` as a string:

- [Rails <= 5.0](https://github.com/rails/rails/blob/5-0-stable/railties/lib/rails/commands/test.rb#L6) used to add the `<app_root>/test` as a string; this behaviour changed in rails 5.1, it's appending a `Pathname` object

Log subscriber - avoid rescuing certain exceptions

Document setting the delivery_job for ActionMailer [ci skip]

`id` column in `subscribers` was added as a primary key for ignorable in
INSERT. But it caused `NotNullViolation` for oracle-enhanced adapter.

https://github.com/rsim/oracle-enhanced/issues/1357

I changed the column to nullable to address the issue.

[ActiveModel] Improve the performance of mass assignments

Don't map id to primary key in raw_write_attribute

Fix `dump_schema_information` with empty versions

Add test cases for #28274

Allow mailers to configure their delivery job

The `raw_write_attribute` method is used to update a record's attributes
to reflect the new state of the database in `update_columns`. The hash
provided to `update_columns` is turned into an UPDATE query directly,
which means passing an `id` key results in an update to the `id` column,
even if the model uses a different attribute as its primary key. When
updating the record, we don't want to apply the `id` column change to
the primary key attribute, since that's not what happened in the query.

Without the code to handle this case, `write_attribute_with_type_cast`
no longer contains any logic shared between `raw_write_attribute` and
`write_attribute`, so we can inline the code into those two methods.

Fixes #29460.

Update `working with javascript` readme to support rails-ujs behaviour. [ci skip]

Setting delivery_job on a mailer class will cause MessageDelivery to use
the specified job instead of ActionMailer::DeliveryJob:

    class MyMailer < ApplicationMailer
      self.delivery_job = MyCustomDeliveryJob

      ...
    end

Allow `uuid_test.rb` to be loaded on all adapters

Prevent extra `sync_with_transaction_state`

`object.id` is correctly restored since #29378 has merged.

Closes #28274, Closes #28395.

[Ryuta Kamizono & Eugene Kenny]

Allow translate default option to accept an array similar to i18n.t

`sync_with_transaction_state` in `to_key` is unneeded because `id` also
does.

Running `bin/test` from the activerecord directory produces this error:

    test/cases/adapters/postgresql/uuid_test.rb:43:in `<class:PostgresqlUUIDTest>': undefined method `supports_pgcrypto_uuid?' for #<ActiveRecord::ConnectionAdapters::SQLite3Adapter:0x007fc405e72a68> (NoMethodError)

The test only actually runs on the PostgreSQL adapter; we can avoid
triggering the error on other adapters with this `respond_to?` guard.

Avoid overwriting the methods of `AttributeMethods::PrimaryKey`

Use `require_relative` instead of `require` with full path