Bump Prometheus.Client.HealthChecks to 2.2.0 (#158)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -7,7 +7,7 @@
     <PackageVersion Include="Prometheus.Client.DependencyInjection" Version="1.6.0" />
     <PackageVersion Include="Prometheus.Client.AspNetCore" Version="6.0.0" />
     <PackageVersion Include="Prometheus.Client.HttpRequestDurations" Version="4.1.0" />
-    <PackageVersion Include="Prometheus.Client.HealthChecks" Version="2.1.1" />
+    <PackageVersion Include="Prometheus.Client.HealthChecks" Version="2.2.0" />
     <PackageVersion Include="Prometheus.Client.MetricServer" Version="7.0.0" />
     <PackageVersion Include="Prometheus.Client.MetricPusher" Version="3.3.0" />
     <PackageVersion Include="Prometheus.Client.MetricPusher.HostedService" Version="0.5.0" />