AAPT2: Allow <meta-data> in <manifest>

Bug:32171613
Test: libaapt2_tests
Change-Id: I30fdd9475ff7dff6ceb0ff46a4a00991b72db68b
diff --git a/tools/aapt2/Main.cpp b/tools/aapt2/Main.cpp
index a3404e5..a2b216d 100644
--- a/tools/aapt2/Main.cpp
+++ b/tools/aapt2/Main.cpp
@@ -25,7 +25,7 @@
 static const char* sMajorVersion = "2";
 
 // Update minor version whenever a feature or flag is added.
-static const char* sMinorVersion = "3";
+static const char* sMinorVersion = "4";
 
 int PrintVersion() {
   std::cerr << "Android Asset Packaging Tool (aapt) " << sMajorVersion << "."