Bump prometheus-net.DotNetRuntime from 4.2.0 to 4.2.1

Bumps [prometheus-net.DotNetRuntime](https://github.com/djluck/prometheus-net.DotNetRuntime) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/djluck/prometheus-net.DotNetRuntime/releases)
- [Commits](https://github.com/djluck/prometheus-net.DotNetRuntime/compare/4.2.0...4.2.1)

---
updated-dependencies:
- dependency-name: prometheus-net.DotNetRuntime
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

@@ -31,7 +31,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="5.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="5.0.9" />
     <PackageReference Include="Mono.Nat" Version="3.0.1" />
-    <PackageReference Include="prometheus-net.DotNetRuntime" Version="4.2.0" />
+    <PackageReference Include="prometheus-net.DotNetRuntime" Version="4.2.1" />
     <PackageReference Include="sharpcompress" Version="0.28.3" />
     <PackageReference Include="SQLitePCL.pretty.netstandard" Version="3.1.0" />
     <PackageReference Include="DotNet.Glob" Version="3.1.2" />