chore(deps-dev): bump standard-version from 4.4.0 to 8.0.1

Bumps [standard-version](https://github.com/conventional-changelog/standard-version) from 4.4.0 to 8.0.1.
- [Release notes](https://github.com/conventional-changelog/standard-version/releases)
- [Changelog](https://github.com/conventional-changelog/standard-version/blob/master/CHANGELOG.md)
- [Commits](conventional-changelog/standard-version@v4.4.0...v8.0.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -44,7 +44,7 @@
     "solhint": "^3.3.4",
     "solhint-plugin-prettier": "^0.0.5",
     "solidity-coverage": "^0.5.11",
-    "standard-version": "^4.4.0",
+    "standard-version": "^8.0.1",
     "truffle": "^5.2.6",
     "truffle-hdwallet-provider": "1.0.17",
     "truffle-hdwallet-provider-privkey": "1.0.3",