[Xamarin.Android.Tools.AndroidSdk] Update platform-tools for API-T (#203)

Context: https://dl-ssl.google.com/android/repository/repository2-3.xml
Context: https://developer.android.com/studio/releases/platform-tools

As of 2023-Mar-03 (according to comments in `repository2-3.xml`),
the Android SDK platform-tools package version 34.0.1 is now
(1) stable, and (2) the *only* platform-tools package listed in
`repository2-3.xml`.

Changes from 33.0.2 include:

  * Various changes to `adb`
  * Various changes to `fastboot`

Update `$(AndroidSdkPlatformToolsVersion)` to 34.0.1 so that the
Android SDK platform-tools 34.0.1 package is the default version used
in Xamarin.Android / .NET Android builds.

TODO: Visual Studio 17.7 will be updated to install
platform-tools 34.0.1 by default as well.

Author: dellis1972

src/Xamarin.Android.Tools.AndroidSdk/Xamarin.Android.Tools.Versions.props

@@ -4,19 +4,19 @@
     <!--
     This file contains the versions of the tooling which will be installed
     by default on a users machine. They should be the latest stable versions
-    which xamarin.android works with. 
-    
-    If this file is changed the submodule for androidtools should be updated, 
-    along with any other repo which references androidtools. 
+    which xamarin.android works with.
+
+    If this file is changed the submodule for androidtools should be updated,
+    along with any other repo which references androidtools.
     -->
     <AndroidSdkBuildToolsVersion Condition="'$(AndroidSdkBuildToolsVersion)' == ''">32.0.0</AndroidSdkBuildToolsVersion>
     <AndroidCommandLineToolsVersion Condition=" '$(AndroidCommandLineToolsVersion)' == '' ">7.0</AndroidCommandLineToolsVersion>
-    <AndroidSdkPlatformToolsVersion Condition="'$(AndroidSdkPlatformToolsVersion)' == ''">33.0.2</AndroidSdkPlatformToolsVersion>
+    <AndroidSdkPlatformToolsVersion Condition="'$(AndroidSdkPlatformToolsVersion)' == ''">34.0.1</AndroidSdkPlatformToolsVersion>
     <AndroidSdkEmulatorVersion Condition="'$(AndroidSdkEmulatorVersion)' == ''"></AndroidSdkEmulatorVersion>
     <AndroidSdkPlatformVersion Condition="'$(AndroidSdkPlatformVersion)' == ''">android-33</AndroidSdkPlatformVersion>
     <AndroidNdkVersion Condition="'$(AndroidNdkVersion)' == ''">24.0.8215888</AndroidNdkVersion>
 
     <!-- obsolete; should consider removing eventually -->
     <AndroidSdkToolsVersion Condition="'$(AndroidSdkToolsVersion)' == ''">26.1.1</AndroidSdkToolsVersion>
   </PropertyGroup>
-</Project>
+</Project>