Use System.IO.Pipelines version 7.0.0

Author: lukebakken

projects/RabbitMQ.Client/RabbitMQ.Client.csproj

@@ -63,7 +63,7 @@
     <PackageReference Include="MinVer" Version="4.3.0" PrivateAssets="all" />
     <PackageReference Include="System.Memory" Version="4.5.5" />
     <PackageReference Include="System.Threading.Channels" Version="7.0.0" />
-    <PackageReference Include="System.IO.Pipelines" Version="6.0.3" />
+    <PackageReference Include="System.IO.Pipelines" Version="7.0.0" />
   </ItemGroup>
 
 </Project>