fix: disable APK signing block to resolve F-Droid build issues (#793)

Thanks for the patch from @linsui.

android/app/build.gradle

@@ -92,6 +92,13 @@ android {
             // No applicationIdSuffix or resValue here
         }
     }
+
+    dependenciesInfo {
+        // Disables dependency metadata when building APKs.
+        includeInApk = false
+        // Disables dependency metadata when building Android App Bundles.
+        includeInBundle = false
+    }
 }
 
 flutter {