[ACR] Update release version in project file (Azure#28008)

We released a few updates from a feature branch. This new release is the latest in the series.
Adjusting the release number appropriately.

Author: Mohit-Chakraborty

sdk/containerregistry/Azure.Containers.ContainerRegistry/src/Azure.Containers.ContainerRegistry.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Description>This client library enables working with the Microsoft Azure Container Registry service to store and manage container images and deployment artifacts.</Description>
     <AssemblyTitle>Microsoft Azure.Containers.ContainerRegistry client library</AssemblyTitle>
-    <Version>1.1.0-beta.1</Version>
+    <Version>1.1.0-beta.4</Version>
     <!--The ApiCompatVersion is managed automatically and should not generally be modified manually.-->
     <ApiCompatVersion>1.0.0</ApiCompatVersion>
     <PackageTags>Azure Container Registry;$(PackageCommonTags)</PackageTags>