Bump @nomiclabs/hardhat-etherscan from 3.1.4 to 3.1.7

Bumps [@nomiclabs/hardhat-etherscan](https://github.com/nomiclabs/hardhat) from 3.1.4 to 3.1.7.
- [Release notes](https://github.com/nomiclabs/hardhat/releases)
- [Commits](https://github.com/nomiclabs/hardhat/compare/@nomiclabs/[email protected]...@nomiclabs/[email protected])

---
updated-dependencies:
- dependency-name: "@nomiclabs/hardhat-etherscan"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

yarn.lock

@@ -2706,7 +2706,7 @@
   resolved "https://registry.npmjs.org/@nomiclabs/hardhat-ethers/-/hardhat-ethers-2.2.1.tgz"
   integrity sha512-RHWYwnxryWR8hzRmU4Jm/q4gzvXpetUOJ4OPlwH2YARcDB+j79+yAYCwO0lN1SUOb4++oOTJEe6AWLEc42LIvg==
 
-"@nomiclabs/hardhat-etherscan@^3.0.0":
+"@nomiclabs/hardhat-etherscan@^3.0.0", "@nomiclabs/hardhat-etherscan@^3.1.0":
   version "3.1.7"
   resolved "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.1.7.tgz"
   integrity sha512-tZ3TvSgpvsQ6B6OGmo1/Au6u8BrAkvs1mIC/eURA3xgIfznUZBhmpne8hv7BXUzw9xNL3fXdpOYgOQlVMTcoHQ==
@@ -2722,22 +2722,6 @@
     table "^6.8.0"
     undici "^5.14.0"
 
-"@nomiclabs/hardhat-etherscan@^3.1.0":
-  version "3.1.4"
-  resolved "https://registry.npmjs.org/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.1.4.tgz"
-  integrity sha512-fw8JCfukf6MdIGoySRmSftlM2wBgoaSbWQZgiYfD/KTeaSFEWCdMpuPZcLSBXtwtnQyyWDs07Lo7fL8HSqtD2Q==
-  dependencies:
-    "@ethersproject/abi" "^5.1.2"
-    "@ethersproject/address" "^5.0.2"
-    cbor "^8.1.0"
-    chalk "^2.4.2"
-    debug "^4.1.1"
-    fs-extra "^7.0.1"
-    lodash "^4.17.11"
-    semver "^6.3.0"
-    table "^6.8.0"
-    undici "^5.4.0"
-
 "@nomiclabs/hardhat-waffle@^2.0.1", "@nomiclabs/hardhat-waffle@^2.0.3":
   version "2.0.3"
   resolved "https://registry.npmjs.org/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.3.tgz"