fix: update PackageExtensionVersion to 1.4.2

Author: Blind-Striker

Directory.Build.props

@@ -6,7 +6,7 @@
         <PackageProjectUrl>https://github.com/localstack-dotnet/localstack-dotnet-client</PackageProjectUrl>
         <PackageIcon>localstack-dotnet-square.png</PackageIcon>
         <PackageMainVersion>1.6.1</PackageMainVersion>
-        <PackageExtensionVersion>1.4.1</PackageExtensionVersion>
+        <PackageExtensionVersion>1.4.2</PackageExtensionVersion>
         <IncludeSymbols>true</IncludeSymbols>
         <SymbolPackageFormat>snupkg</SymbolPackageFormat>
         <LangVersion>13.0</LangVersion>