Upgrade to Rails 7.2

[etagwerker]

Before we start...:

• [x] I checked the documentation and didn't find this feature
• [x] I checked to make sure that this feature has not already been requested

Branch/Commit:

main branch.

Problem:

Rails 7.1 becomes EOL in 8 months (October '25)

Resources:

There may be a known issue with ombu_labs-auth: https://github.com/fastruby/ombu_labs-auth/issues/23

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