Update CSS parser commit (dotnet#47712)

Match up with what will be built in source-build.
Includes dotnet/cssparser@d6d86bc...0d59611

Author: mmitche

eng/Versions.props

@@ -219,7 +219,7 @@
     <MicrosoftCodeAnalysisPublicApiAnalyzersVersion>3.3.3</MicrosoftCodeAnalysisPublicApiAnalyzersVersion>
     <MicrosoftCodeAnalysisCSharpAnalyzerTestingXUnitVersion>1.1.2-beta1.22531.1</MicrosoftCodeAnalysisCSharpAnalyzerTestingXUnitVersion>
     <MicrosoftCodeAnalysisCSharpCodeFixTestingXUnitVersion>1.1.2-beta1.22531.1</MicrosoftCodeAnalysisCSharpCodeFixTestingXUnitVersion>
-    <MicrosoftCssParserVersion>1.0.0-20200708.1</MicrosoftCssParserVersion>
+    <MicrosoftCssParserVersion>1.0.0-20230414.1</MicrosoftCssParserVersion>
     <MicrosoftIdentityModelLoggingVersion>6.15.1</MicrosoftIdentityModelLoggingVersion>
     <MicrosoftIdentityModelProtocolsOpenIdConnectVersion>6.15.1</MicrosoftIdentityModelProtocolsOpenIdConnectVersion>
     <MicrosoftIdentityModelProtocolsWsFederationVersion>6.15.1</MicrosoftIdentityModelProtocolsWsFederationVersion>