fix: support for changes in Rails 7.0.7

[ruzia]

Using Rails 7.0.7, the following error occurs when performing database migration.
This pull-req is a fix for this.

$ bundle exec rails db:migrate
rails aborted!
NoMethodError: undefined method `quoted_table_names' for ActiveRecord::ConnectionAdapters::SpannerAdapter:Class

see also: https://github.com/rails/rails/pull/48773/files

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[ruzia]

@olavloite Please let me know if there is anything needs to be changed​.

[olavloite]

LGTM. Thanks for updating this!

[ruzia]

@olavloite Thanks for merge! 🙌
When do you plan to release this fix?

[olavloite]

We've been having some problems with integration tests that have been timing out. Once we have fixed that, we'll cut a new release that also includes this fix. The problem with the failing integration tests will be fixed in #258, so once that is merged, we'll do the release.

[ruzia]

Thanks for response! 😄
I understand.