Bump prometheus-net.DotNetRuntime from 3.3.1 to 3.4.0

Bumps [prometheus-net.DotNetRuntime](https://github.com/djluck/prometheus-net.DotNetRuntime) from 3.3.1 to 3.4.0.
- [Release notes](https://github.com/djluck/prometheus-net.DotNetRuntime/releases)
- [Commits](https://github.com/djluck/prometheus-net.DotNetRuntime/compare/3.3.1...3.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

Emby.Server.Implementations/Emby.Server.Implementations.csproj

@@ -37,7 +37,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="3.1.6" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.1.6" />
     <PackageReference Include="Mono.Nat" Version="2.0.2" />
-    <PackageReference Include="prometheus-net.DotNetRuntime" Version="3.3.1" />
+    <PackageReference Include="prometheus-net.DotNetRuntime" Version="3.4.0" />
     <PackageReference Include="ServiceStack.Text.Core" Version="5.9.2" />
     <PackageReference Include="sharpcompress" Version="0.26.0" />
     <PackageReference Include="SQLitePCL.pretty.netstandard" Version="2.1.0" />