12.1 update MR version

MRTK test/ProjectSettings/QualitySettings.asset

@@ -201,7 +201,7 @@ QualitySettings:
     skinWeights: 4
     textureQuality: 0
     anisotropicTextures: 2
-    antiAliasing: 2
+    antiAliasing: 0
     softParticles: 1
     softVegetation: 1
     realtimeReflectionProbes: 1

MRTK test/ProjectSettings/URPProjectSettings.asset

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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 247994e1f5a72c2419c26a37e9334c01, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
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