Bump eslint-plugin-promise from 4.3.1 to 6.0.0

Bumps [eslint-plugin-promise](https://github.com/xjamundx/eslint-plugin-promise) from 4.3.1 to 6.0.0.
- [Release notes](https://github.com/xjamundx/eslint-plugin-promise/releases)
- [Changelog](https://github.com/xjamundx/eslint-plugin-promise/blob/development/CHANGELOG.md)
- [Commits](https://github.com/xjamundx/eslint-plugin-promise/commits)

---
updated-dependencies:
- dependency-name: eslint-plugin-promise
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -50,7 +50,7 @@
     "eslint-config-standard": "^14.1.1",
     "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-promise": "^4.2.1",
+    "eslint-plugin-promise": "^6.0.0",
     "eslint-plugin-standard": "^3.0.1",
     "mocha": "^7.0.1",
     "nyc": "^15.0.0"