V0.17.0

Rinsed v0.17.0 rebase via Claude (#42)

Claude Prompt:
> I want you to rebase the current branch (rinsed-v0.17.0-rebase) on top
of rinsed-v0.17.0. Resolve any conflicts and get the rebase done.

Post Prompt:
- Removed CircleCI, it was removed in a later version of Administrate
(v0.20)
- Added Docker file for testing and added GitHub action to automate
tests.
- Updated Ruby to 3.3, same version we use in the CRM.
	- removed locked versions of gems to allow update with ruby version
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Co-authored-by: Nic Hippenmeyer <nic@rinsed.co>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Nicholas Hippenmeyer <nicholashippenmeyer@gmail.com>
Co-authored-by: Volodymyr Makukh <makova83@gmail.com>
Co-authored-by: Shouichi Kamiya <shouichi.kamiya@gmail.com>
Co-authored-by: jubilee2 <jubilee2@gmail.com>
Co-authored-by: Fabrice Castel <fabrice.castel@hotmail.com>
Co-authored-by: Nathan Pastor <nmpastor1@gmail.com>
Co-authored-by: Skylar Bolton <skylar.bolton@gmail.com>