fix: downgrade eslint-plugin-promise to v5.2.0 (#401)

eslint-config-standard does not support v6 yet.

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Author: XhmikosR

package-lock.json

@@ -89,7 +89,7 @@
     "eslint-plugin-import": "^2.25.1",
     "eslint-plugin-markdown": "^2.0.0",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-promise": "^6.0.0",
+    "eslint-plugin-promise": "^5.2.0",
     "eslint-plugin-react": "^7.21.5",
     "eslint-plugin-unicorn": "^39.0.0",
     "eslint-plugin-you-dont-need-lodash-underscore": "^6.10.0",