v7.3.0

[ENHANCEMENTS]
- Add support for logging custom events on the Appium Server. #1262
- Update Appium executable detection implementation. #1256
- Avoid through NPE if any setting value is null. #1241
- Settings API was improved to accept string names. #1240
- Switch runAppInBackground iOS implementation in sync with other platforms. #1229
- JavaDocs for AndroidMobileCapabilityType was updated. #1238
- Github Actions were introduced instead of TravisCI. #1219

• [BUG FIX]
  • Fix return type of getSystemBars API. #1216
  • Avoid using getSession call for capabilities values retrieval [W3C Support]. #1204
  • Fix pagefactory list element initialisation when parameterised by generic type. #1237
  • Fix AndroidKey commands. #1250