Conflict with @nomiclabs/hardhat-etherscan 3.0.0

[clifton]

a reincarnation of #106

@nomiclabs/hardhat-etherscan is 3.0.0
hardhat-deploy is 0.9.24

fixed by downgrading @nomiclabs/hardhat-etherscan to 2.1.8

node_modules/hardhat-deploy/dist/src/type-extensions.d.ts:24:9 - error TS2717: Subsequent property declarations must have the same type.  Property 'etherscan' must be of type 'EtherscanConfig | undefined', but here has type '{ apiKey?: string | undefined; } | undefined'.

24         etherscan?: {
           ~~~~~~~~~

  node_modules/@nomiclabs/hardhat-etherscan/dist/src/type-extensions.d.ts:5:9
    5         etherscan?: EtherscanConfig;
              ~~~~~~~~~
    'etherscan' was also declared here.

node_modules/hardhat-deploy/dist/src/type-extensions.d.ts:46:9 - error TS2717: Subsequent property declarations must have the same type.  Property 'etherscan' must be of type 'EtherscanConfig', but here has type '{ apiKey?: string | undefined; }'.

46         etherscan: {
           ~~~~~~~~~

  node_modules/@nomiclabs/hardhat-etherscan/dist/src/type-extensions.d.ts:8:9
    8         etherscan: EtherscanConfig;
              ~~~~~~~~~
    'etherscan' was also declared here.


Found 2 errors.

[wighawag]

should be fixed in 0.10.0 (breaking change: now hardhat-deploy use the verify field in hardhat.config

see : https://github.com/wighawag/hardhat-deploy#4-hardhat-etherscan-verify