[BUG] decimal dependency is outdated

[deemytch]

Versions Used
Kaffy: 0.11.0
Phoenix: 1.8.4
Elixir: 1.20.1
MyXQL: 0.9.0

What's actually happening?
Actual version of decimal is 3.1.1
Kaffy depends on 2.2 version
Installation fails.

What should happen instead?
White rabbits falling from the heaven?

Screenshots

Because kaffy >= 0.10.3 depends on decimal ~> 2.2 and myxql >= 0.9.0 depends on decimal ~> 3.0, kaffy >= 0.10.3 is incompatible with myxql >= 0.9.0.
And because your app depends on kaffy ~> 0.11.0, myxql >= 0.9.0 is forbidden.
So, because your app depends on myxql ~> 0.9, version solving failed.