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-preview[bot] <support@dependabot.com>

package.json

@@ -38,7 +38,7 @@
     "codecov": "3.7.1",
     "nyc": "11.9.0",
     "prettier": "2.2.1",
-    "standard-version": "4.4.0",
+    "standard-version": "8.0.1",
     "tslint": "6.1.3",
     "tslint-config-prettier": "1.18.0",
     "tslint-plugin-prettier": "2.0.1",