Update proguard rules

Author: buenaflor

flutter/android/proguard-rules.pro

@@ -1,4 +1,12 @@
 -keep class io.sentry.flutter.** { *; }
+-keepclassmembers class io.sentry.flutter.** { *; }
+
+# Keep replay integration classes used by JNI
+-keep class io.sentry.android.replay.** { *; }
+
+# Keep bitmap classes used by JNI
+-keep class android.graphics.Bitmap { *; }
+-keep class android.graphics.Bitmap$Config { *; }
 
 # To ensure that stack traces is unambiguous
 # https://developer.android.com/studio/build/shrink-code#decode-stack-trace