Bump the dotnet group (#45967)

Bumps the dotnet group in /docs/core/diagnostics/snippets/OTLP-Example/csharp with 3 updates: [OpenTelemetry.Exporter.Console](https://github.com/open-telemetry/opentelemetry-dotnet), [OpenTelemetry.Exporter.OpenTelemetryProtocol](https://github.com/open-telemetry/opentelemetry-dotnet) and [OpenTelemetry.Extensions.Hosting](https://github.com/open-telemetry/opentelemetry-dotnet).


Updates `OpenTelemetry.Exporter.Console` from 1.11.2 to 1.12.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/RELEASENOTES.md)
- [Commits](open-telemetry/opentelemetry-dotnet@core-1.11.2...core-1.12.0)

Updates `OpenTelemetry.Exporter.OpenTelemetryProtocol` from 1.11.2 to 1.12.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/RELEASENOTES.md)
- [Commits](open-telemetry/opentelemetry-dotnet@core-1.11.2...core-1.12.0)

Updates `OpenTelemetry.Extensions.Hosting` from 1.11.2 to 1.12.0
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/RELEASENOTES.md)
- [Commits](open-telemetry/opentelemetry-dotnet@core-1.11.2...core-1.12.0)

---
updated-dependencies:
- dependency-name: OpenTelemetry.Exporter.Console
  dependency-version: 1.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
- dependency-name: OpenTelemetry.Exporter.OpenTelemetryProtocol
  dependency-version: 1.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
- dependency-name: OpenTelemetry.Extensions.Hosting
  dependency-version: 1.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

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

Author: dependabot[bot]

docs/core/diagnostics/snippets/OTLP-Example/csharp/OTLP-Example.csproj

@@ -8,9 +8,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.11.2" />
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.11.2" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.11.2" />
+    <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.12.0" />
+    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.12.0" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.11.1" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.11.1" />
   </ItemGroup>