Bump Serilog and System.Diagnostics.DiagnosticSource (#2633)

Bumps [Serilog](https://github.com/serilog/serilog) and [System.Diagnostics.DiagnosticSource](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `Serilog` from 3.1.1 to 4.0.0
- [Release notes](https://github.com/serilog/serilog/releases)
- [Commits](serilog/serilog@v3.1.1...v4.0.0)

Updates `System.Diagnostics.DiagnosticSource` from 6.0.1 to 8.0.1
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v6.0.1...v8.0.1)

---
updated-dependencies:
- dependency-name: Serilog
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: System.Diagnostics.DiagnosticSource
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Applications/ConsoleReferenceClient/ConsoleReferenceClient.csproj

@@ -24,7 +24,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
-    <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog" Version="4.0.0" />
     <PackageReference Include="Serilog.Expressions" Version="4.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="5.0.0" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="3.1.0" />

Applications/ConsoleReferenceServer/ConsoleReferenceServer.csproj

@@ -33,7 +33,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
-    <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog" Version="4.0.0" />
     <PackageReference Include="Serilog.Expressions" Version="4.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="5.0.0" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="3.1.0" />

Applications/ReferenceServer/Reference Server.csproj

@@ -159,7 +159,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Serilog">
-      <Version>3.1.1</Version>
+      <Version>4.0.0</Version>
     </PackageReference>
     <PackageReference Include="Serilog.Sinks.Debug">
       <Version>2.0.0</Version>

Fuzzing/Encoders/Fuzz.Tools/Encoders.Fuzz.Tools.csproj

@@ -22,7 +22,7 @@
     <PackageReference Include="SharpFuzz" Version="2.1.1" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
-    <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog" Version="4.0.0" />
     <PackageReference Include="Serilog.Expressions" Version="4.0.0" />
     <PackageReference Include="Serilog.Sinks.Console" Version="5.0.0" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="3.1.0" />