fix: android CMakeLists.txt for newer versions of react-native

[renanmav]

closes #72

validated fix on peterpme/react-native-bignumber-sdk52#1

[renanmav]

I don't know why CI is failing to find react android and hermes:

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':configureCMakeDebug[arm64-v8a]'.
> Could not resolve all files for configuration ':debugCompileClasspath'.
   > Could not find com.facebook.react:react-android:.
     Required by:
         project :
   > Could not find com.facebook.react:hermes-android:.
     Required by:
         project :

I can take a look in a follow up.

[mrousavy]

if it builds, lgtm