Revert "Bump rails from 7.1.3.4 to 7.2.0"

[FinnIckler]

Reverts #648
There seems to be something wrong with using our AppSecret implementation in the config file (maybe this is related https://blog.driftingruby.com/rails-7-2-upgrade-problems-of-my-own-making/ ?).
The actual message we are getting is

/usr/local/bundle/gems/railties-7.2.0/lib/rails/application/configuration.rb:519:in `secret_key_base=': Missing `secret_key_base` for 'production' environment, set this string with `bin/rails credentials:edit` (ArgumentError)
	
handler
August 20, 2024 at 15:12 (UTC-4:00)
	
raise ArgumentError, "Missing `secret_key_base` for '#{Rails.env}' environment, set this string with `bin/rails credentials:edit`"
	
handler
August 20, 2024 at 15:12 (UTC-4:00)
	
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
	
handler
August 20, 2024 at 15:12 (UTC-4:00)
	
from /usr/local/bundle/gems/railties-7.2.0/lib/rails/application/configuration.rb:503:in `secret_key_base'

Even though it is set in the secrets.yml through AppSecrets

[FinnIckler]

mh.... Ok it seems like the secret.yml has been removed in 7.20 (3.1 https://edgeguides.rubyonrails.org/7_2_release_notes.html Remove deprecated Rails.application.secrets.)