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

@@ -76,6 +76,6 @@
     "eslint-plugin-prettier": "^2.6.0",
     "husky": "^0.14.3",
     "prettier": "^1.12.1",
-    "standard-version": "^4.3.0"
+    "standard-version": "^8.0.1"
   }
 }