Chore/update android build config (#40)

* Replace deprecated jcenter() with mavenCentral()

JCenter has been deprecated and shut down. This updates the Android
build configuration to use mavenCentral() instead, which is the
recommended Maven repository for Android dependencies.

* Update Android Gradle plugin to 7.4.2

Updates the Android Gradle plugin from 3.5.4 to 7.4.2 for better
compatibility with modern Android build tools and React Native versions.

---------

Co-authored-by: krifa <mohamed.benkrifa@elona.health>

Author: krifamed

android/build.gradle

@@ -2,11 +2,11 @@ buildscript {
     if (project == rootProject) {
         repositories {
             google()
-            jcenter()
+            mavenCentral()
         }
 
         dependencies {
-            classpath 'com.android.tools.build:gradle:3.5.4'
+            classpath 'com.android.tools.build:gradle:7.4.2'
         }
     }
 }
@@ -56,7 +56,7 @@ repositories {
         url("$rootDir/../node_modules/react-native/android")
     }
     google()
-    jcenter()
+    mavenCentral()
 }
 
 dependencies {