Update dependency Microsoft.Bcl.AsyncInterfaces to v9

Author: renovate-bot

EnumerableAsyncProcessor/EnumerableAsyncProcessor.csproj

@@ -22,7 +22,7 @@
     </PropertyGroup>
 
     <ItemGroup Condition="'$(TargetFrameworkIdentifier)'!='.NETCoreApp'">
-        <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="8.0.0" />
+        <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.0" />
         <PackageReference Include="System.Collections.Immutable" Version="8.0.0" />
 
     </ItemGroup>