fix: convert versionname to string (#1022)

Author: edapess

packages/core/android/src/main/java/com/segmentanalyticsreactnative/AnalyticsReactNativeModule.kt

@@ -125,7 +125,7 @@ class AnalyticsReactNativeModule : ReactContextBaseJavaModule, ActivityEventList
   @ReactMethod
   fun getContextInfo(config: ReadableMap, promise: Promise) {
     val appName: String = reactApplicationContext.applicationInfo.loadLabel(reactApplicationContext.packageManager).toString()
-    val appVersion: String = pInfo.versionName
+    val appVersion: String = pInfo.versionName.toString()
     val buildNumber = getBuildNumber()
     val bundleId = reactApplicationContext.packageName