chore(deps-dev): bump standard-version from 6.0.1 to 8.0.1

Bumps [standard-version](https://github.com/conventional-changelog/standard-version) from 6.0.1 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@v6.0.1...v8.0.1)

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

package.json

@@ -39,7 +39,7 @@
     "coveralls": "^3.0.0",
     "rimraf": "^2.5.3",
     "standard": "^13.0.1",
-    "standard-version": "^6.0.1",
+    "standard-version": "^8.0.1",
     "tap": "^12.0.1"
   }
 }