Incorrect gas settings on celocli (Baklava), additionally allow overriding of gas settings

[kamikazechaser]

Package

@celo/celocli

Have you ensured that all of these are up to date?

• the package you are using

What version of the package are you on?

4.2.0

What command or function is the bug in?

npx celocli exchange:dollars --from 0x0--value 10000000000000000000

Operating System

Linux

Describe the bug

Network: Baklava

Output:

Running Checks:
   ✔  Account has at least 10 cUSD 
   ✔  Compliant Address 
All checks passed
Fetching Quote... done
Quoted Price: 1.19903439 per token
SendTransaction: increaseAllowance
txHash: 0x0
Sending Transaction: increaseAllowance... done
Swapping 10000000000000000000 cUSD for estimated 11990343892539984991 CELO
Sending Transaction: exchange... failed: max priority fee per gas higher than max fee per gas
    Error: max priority fee per gas higher than max fee per gas

^ It seems the gas price settings originating from @celo/cli are incorrect (fetched from node?)

Ideally allow overriding of gas settings in such cases through flags such as:

--gasLimit 500000 --gasPrice 10000000000 --priorityGasPrice 10