fix assembly version

Author: smdn

src/Smdn.Net.EchonetLite.Primitives/Smdn.Net.EchonetLite.Primitives.csproj

@@ -7,7 +7,7 @@ SPDX-License-Identifier: MIT
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.1;net8.0</TargetFrameworks>
-    <VersionPrefix>2.1.0</VersionPrefix>
+    <VersionPrefix>2.0.1</VersionPrefix>
     <VersionSuffix></VersionSuffix>
     <PackageValidationBaselineVersion>2.0.0</PackageValidationBaselineVersion>
     <Nullable>enable</Nullable>