Revert framework version change

Author: austinvaness

PluginLoader/PluginLoader.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>avaness.PluginLoader</RootNamespace>
     <AssemblyName>PluginLoader</AssemblyName>
-    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <Deterministic>true</Deterministic>
     <LangVersion>latest</LangVersion>