Bumps [activerecord](https://github.com/rails/rails) from 6.0.3.4 to 6.1.0.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.1.0/activerecord/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v6.0.3.4...v6.1.0

)

* Run rails app:update
* Update list of Appraisals
* Allow missing translations to be backwards compatible
* Switch params keys to strings
  In Rails 6.1, the results of parameters are now all strings since the
  change in [1], this switches to those with a version check so it can be
  removed easier in the future.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

[1]: https://github.com/rails/rails/commit/c0750fe2304de2c7bae028cbc465b6bf7e7d253e#



Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>