Use default inspect for database adapter

[aidanharan]

Fix ActiveRecord::AdapterTest#test_0002_inspect does not show secrets:

https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/actions/runs/9627344416/job/26554338325#step:4:274

1) Failure:
ActiveRecord::AdapterTest#test_0002_inspect does not show secrets [/usr/local/bundle/bundler/gems/rails-0b89a3393599/activerecord/test/cases/adapter_test.rb:330]:
Expected /ActiveRecord::ConnectionAdapters::\w+:0x[\da-f]+ env_name="\w+" role=:writing>/ to match "#<ActiveRecord::ConnectionAdapters::SQLServerAdapter version: 7.2.0.beta2, azure: false>".

See rails/rails#50405