FIX: array of coin is not support as a autoCLI param

[Pantani]

Create types as array.coin / coins will not be able to send parameters through the CLI; the autoCLI does not support parsing the coins as slices in this new version of the SDK:

https://github.com/cosmos/cosmos-sdk/blob/main/client/v2/autocli/flag/coin.go#L45-L45

Eg:

• Scaffold a chain with a coins type and run it:

ignite s chain venus && cd venus && \
ignite s list employee salary:coins && \
ignite chain serve

• Try to create a new transaction:

venusd tx venus create-employee "2token,4stake"

[julienrbrt]

This issue is a bug in the scaffolding logic, we need to set VarArgs: true in the autocli config when it is an array.
Fixing this will show up this issue: #4623 (meaning the parsing went well)

Additionally variadics should be using spaces, so it should be venusd tx venus create-employee 2token 4stake