Bump NServiceBus from 8.1.5 to 8.1.6 in /src (#555)

Bumps [NServiceBus](https://github.com/Particular/NServiceBus) from 8.1.5 to 8.1.6.
- [Release notes](https://github.com/Particular/NServiceBus/releases)
- [Commits](Particular/NServiceBus@8.1.5...8.1.6)

---
updated-dependencies:
- dependency-name: NServiceBus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/NServiceBus.Newtonsoft.Encryption.Tests/NServiceBus.Newtonsoft.Encryption.Tests.csproj

@@ -7,7 +7,7 @@
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" PrivateAssets="all" />
     <PackageReference Include="Xunit" Version="2.6.1" />
     <PackageReference Include="NServiceBus.Newtonsoft.Json" Version="3.0.0" />
-    <PackageReference Include="NServiceBus" Version="8.1.5" />
+    <PackageReference Include="NServiceBus" Version="8.1.6" />
     <PackageReference Include="Verify.Xunit" Version="22.1.4" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="ProjectDefaults" Version="1.0.101" PrivateAssets="all" />

src/NServiceBus.Newtonsoft.Encryption/NServiceBus.Newtonsoft.Encryption.csproj

@@ -5,7 +5,7 @@
   <ItemGroup>
     <PackageReference Include="ConfigureAwait.Fody" Version="3.3.2" PrivateAssets="All" />
     <PackageReference Include="Fody" Version="6.8.0" PrivateAssets="all" />
-    <PackageReference Include="NServiceBus" Version="8.1.5" />
+    <PackageReference Include="NServiceBus" Version="8.1.6" />
     <PackageReference Include="NServiceBus.Newtonsoft.Json" Version="3.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <ProjectReference Include="..\Newtonsoft.Json.Encryption\Newtonsoft.Json.Encryption.csproj" />

src/NServiceBusSample/NServiceBusSample.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>net7.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="NServiceBus" Version="8.1.5" />
+    <PackageReference Include="NServiceBus" Version="8.1.6" />
     <PackageReference Include="NServiceBus.Newtonsoft.Json" Version="3.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <ProjectReference Include="..\NServiceBus.Newtonsoft.Encryption\NServiceBus.Newtonsoft.Encryption.csproj" />