ci: amarna

[milancermak]

This PR adds Amarna, a static code analyzer, to the CI.

At times, it has false positives, but generally it's pretty helpful. For example, it detected an unused import of ACCOUNT_BALANCE_UPPER_BOUND in amm.cairo - but shouldn't it be used in set_account_balance on line 89 instead of POOL_BALANCE_UPPER_BOUND?

Anyway, I hope it'll actually work and run the first time, GitHub Actions can be a bit finicky to set up :)

[tensojka]

This works pretty nicely, but for the moment would IMO be a distraction, since the code is a mess and we know it. For the moment, I added a very simple runner that simply checks whether the code can be built or not (see protostar.yml in master) and I'd merge this once LP tokens and option tokens are done and we are free for some cleanup work.

[MarekHauzr]

This works pretty nicely, but for the moment would IMO be a distraction, since the code is a mess and we know it. For the moment, I added a very simple runner that simply checks whether the code can be built or not (see protostar.yml in master) and I'd merge this once LP tokens and option tokens are done and we are free for some cleanup work.

👍