Bump CommandLineParser from 2.4.3 to 2.9.1 (#1286)

Author: dependabot[bot]

Directory.Packages.props

@@ -48,7 +48,7 @@
   <!-- Test dependencies -->
   <ItemGroup>
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.0.0-beta.4" />
-    <PackageVersion Include="CommandLineParser" Version="2.4.3" Condition="'$(TargetFramework)' == 'net6.0'" />
+    <PackageVersion Include="CommandLineParser" Version="2.9.1" Condition="'$(TargetFramework)' == 'net6.0'" />
     <PackageVersion Include="CommandLineParser" Version="1.9.71" Condition="'$(TargetFramework)' == 'net48'" />
     <PackageVersion Include="EnterpriseLibrary.SemanticLogging.EventSourceAnalyzer.NetCore" Version="2.0.1406.4" />
     <PackageVersion Include="Microsoft.AspNet.WebApi.Core" Version="5.3.0" />