[Android] Make sure we use the react-native version in node_modules

Releases are also published to jcenter, and due to how the dependency is
declared, we are picking the latest release from there, which is arguably not
what we want.

android/build.gradle

         maven { url "$rootDir/../node_modules/react-native/android" }
     }
 
+    // Make sure we use the react-native version in node_modules and not the one
+    // published in jcenter / elsewhere.
+    configurations.all {
+        resolutionStrategy {
+            eachDependency { DependencyResolveDetails details ->
+                if (details.requested.group == 'com.facebook.react'
+                        && details.requested.name == 'react-native') {
+                    def file = new File("$rootDir/../node_modules/react-native/package.json")
+                    def version = new groovy.json.JsonSlurper().parseText(file.text).version
+                    details.useVersion version
+                }
+            }
+        }
+    }
+
     // Third-party react-native modules which Jitsi Meet SDK for Android depends
     // on and which are not available in third-party Maven repositories need to
     // be deployed in a Maven repository of ours.