Update package versions, update RMQ and Erlang version for Windows testing, fix nullable warning

Author: lukebakken

.ci/versions.json

@@ -1,4 +1,4 @@
 {
-  "erlang": "25.2.2",
-  "rabbitmq": "3.11.8"
+  "erlang": "25.2.3",
+  "rabbitmq": "3.11.9"
 }

projects/Benchmarks/Benchmarks.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.4" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
     <PackageReference Include="Ductus.FluentDocker" Version="2.10.59" />
   </ItemGroup>
 

projects/Unit/TestBasicProperties.cs

@@ -31,7 +31,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
@@ -202,7 +201,7 @@ public void TestPropertiesRountrip_Headers()
             // Arrange
             var subject = new BasicProperties
             {
-                Headers = new Dictionary<string, object?>()
+                Headers = new Dictionary<string, object>()
             };
 
             var cf = new ConnectionFactory();

projects/Unit/Unit.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
@@ -26,7 +26,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Verify.Xunit" Version="19.9.2" />
+    <PackageReference Include="Verify.Xunit" Version="19.10.0" />
     <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
   </ItemGroup>