Bump prometheus-net from 6.0.0 to 7.0.0

Bumps [prometheus-net](https://github.com/prometheus-net/prometheus-net) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/prometheus-net/prometheus-net/releases)
- [Changelog](https://github.com/prometheus-net/prometheus-net/blob/master/History)
- [Commits](https://github.com/prometheus-net/prometheus-net/compare/v6.0.0...v7.0.0)

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

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

OhmGraphite/OhmGraphite.csproj

@@ -38,7 +38,7 @@
     <PackageReference Include="LibreHardwareMonitorLib" Version="0.9.2-pre186" />
     <PackageReference Include="InfluxDB.Client" Version="4.6.0" />
     <PackageReference Include="Npgsql" Version="6.0.7" />
-    <PackageReference Include="prometheus-net" Version="6.0.0" />
+    <PackageReference Include="prometheus-net" Version="7.0.0" />
     <PackageReference Include="System.Configuration.ConfigurationManager" Version="6.0.1" />
     <PackageReference Include="TopShelf" Version="4.3.0" />
     <PackageReference Include="Topshelf.NLog" Version="4.3.0" />