feat: export upload utils (#1252)

Author: a7medev

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased](https://github.com/Instabug/Instabug-React-Native/compare/v13.2.0...dev)
 
+### Added
+
+- Export `uploadSourcemaps` and `uploadSoFiles` utilities in the `instabug-reactnative/upload` sub-package for usage in custom Node.js upload scripts ([#1252](https://github.com/Instabug/Instabug-React-Native/pull/1252)).
+
 ### Fixed
 
 - Fix APM network logging on Android ([#1253](https://github.com/Instabug/Instabug-React-Native/pull/1253)).