Bump to xamarin/LibZipSharp/2.0.3@9bccd749 (#6667)

Context: dotnet/android-libzipsharp#104

Changes: dotnet/android-libzipsharp@2.0.2...2.0.3

  * dotnet/android-libzipsharp@9bccd74: Don't rewind the temporary stream on write to the main one (#104)

We are seeing the following error on some builds

	error XABBA7000: Xamarin.Tools.Zip.ZipException: Zip archive inconsistent: entry 0: invalid WinZip AES extra field

Verison 2.0.2 of LibZipSharp was supposed to fix this, but it had a
bug (dotnet/android-libzipsharp#104), which would cause corruption in the
zip file itself.

We believe that this issue has been fixed in LibZipSharp 2.0.3; Bump!

Author: dellis1972

Directory.Build.props

@@ -27,7 +27,7 @@
 
   <!-- Common <PackageReference/> versions -->
   <PropertyGroup>
-    <LibZipSharpVersion>2.0.2</LibZipSharpVersion>
+    <LibZipSharpVersion>2.0.3</LibZipSharpVersion>
     <MicroBuildCoreVersion>0.4.1</MicroBuildCoreVersion>
     <MonoCecilVersion>0.11.4</MonoCecilVersion>
     <NewtonsoftJsonPackageVersion>13.0.1</NewtonsoftJsonPackageVersion>

external/xamarin-android-tools

@@ -181,8 +181,10 @@ void ExecuteWithAbi (string [] supportedAbis, string apkInputPath, string apkOut
 					AddFileToArchiveIfNewer (apk, dex.ItemSpec, DalvikPath + dexPath, compressionMethod: dexCompressionMethod);
 				}
 
-				if (EmbedAssemblies && !BundleAssemblies)
+				if (EmbedAssemblies && !BundleAssemblies) {
 					AddAssemblies (apk, debug, compress, compressedAssembliesInfo, assemblyStoreApkName);
+					apk.Flush ();
+				}
 
 				AddRuntimeLibraries (apk, supportedAbis);
 				apk.Flush();