chore(release): 4.2.1 [skip ci]

## [4.2.1](react-native-camera/react-native-camera@v4.2.0...v4.2.1) (2021-09-21)

### Bug Fixes

* Remove the `mCamera.setPreviewDisplay` call on surface destroy as it may cause ANRs or slow down the UI when unmounting.  The side effect of this is a nasty warning `BufferQueue has been abandoned` that can be ignored. ([react-native-camera#3331](react-native-camera#3331)) ([9c0b87e](react-native-camera@9c0b87e))

package.json

@@ -1,7 +1,7 @@
 {
   "name": "react-native-camera",
   "description": "A Camera component for React Native. Also reads barcodes.",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "author": "Lochlan Wansbrough <[email protected]> (http://lwansbrough.com)",
   "collective": {
     "type": "opencollective",