Fix indentation in AppleBuild.props for clarity

Author: kotlarmilos

src/mono/msbuild/apple/build/AppleBuild.props

@@ -9,7 +9,7 @@
     <MonoForceInterpreter Condition="'$(MonoForceInterpreter)' == ''">true</MonoForceInterpreter>
   </PropertyGroup>
 
-   <PropertyGroup Condition="'$(UseMonoRuntime)' != 'true' and '$(UseNativeAOTRuntime)' != 'true'">
+  <PropertyGroup Condition="'$(UseMonoRuntime)' != 'true' and '$(UseNativeAOTRuntime)' != 'true'">
     <PublishReadyToRun Condition="'$(PublishReadyToRun)' == ''">true</PublishReadyToRun>
     <PublishReadyToRunComposite Condition="'$(PublishReadyToRun)' == 'true'">true</PublishReadyToRunComposite>
     <PublishReadyToRunContainerFormat Condition="'$(PublishReadyToRun)' == 'true'">macho</PublishReadyToRunContainerFormat>