Fix monitoring integration with actual prometheus (#3183)

* Downgrade OpenTelemetry.Exporter.Prometheus.AspNetCore due to issues with latest version

* Add unit to asf_bot_farming_minutes_remaining

* Upgrade some packages released last night (already tested to work)

* Don't forget about unit suffix

* Add build and runtime information metrics

It is not recommended to include this information as labels in all
metrics. Instead, we add two special metrics with a constant value of
"1" and restrict those static pieces of information to them

* Remove module version from metrics as it does not work

* Apply feedback

* Deduplicate code

* Reference related issue in upstream repo

.github/renovate.json5

@@ -12,5 +12,13 @@
 	],
 	"git-submodules": {
 		"enabled": true
-	}
+	},
+	"packageRules": [
+		{
+			// TODO: <= 1.7.0-rc.1 for invalid response on monitoring endpoint, last failed version 1.8.0-rc.1 - https://github.com/open-telemetry/opentelemetry-dotnet/issues/5506
+			"allowedVersions": "<= 1.7.0-rc.1",
+			"matchManagers": [ "nuget" ],
+			"matchPackageNames": [ "OpenTelemetry.Exporter.Prometheus.AspNetCore" ]
+		}
+	]
 }