try fix in build.grade for bad hermes version

Deal with bad `hermesCommand`? expo/fyi#86 (comment)

Was getting an error similar to OP, something like `com.facebook.jni.CppException: Compiling JS failed: Wrong bytecode version. Expected 85 but got 84`

co2_native_client/android/app/build.gradle

@@ -85,7 +85,10 @@ import org.apache.tools.ant.taskdefs.condition.Os
 project.ext.react = [
     enableHermes: true,
     cliPath: new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/cli.js",
-    hermesCommand: new File(["node", "--print", "require.resolve('hermes-engine/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/%OS-BIN%/hermesc",
+
+
+    // See https://github.com/expo/fyi/issues/86#issue-1388603237
+    hermesCommand: new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/sdks/hermesc/%OS-BIN%/hermesc",
     composeSourceMapsPath: new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/scripts/compose-source-maps.js",
 ]