Bump OpenTelemetry.Exporter.OpenTelemetryProtocol from 1.9.0 to 1.12.0 in /src#4967

dependabot[bot] wants to merge 1 commit intomasterParticular/ServiceControl:masterfrom

dependabot/nuget/src/OpenTelemetry.Exporter.OpenTelemetryProtocol-1.12.0Particular/ServiceControl:dependabot/nuget/src/OpenTelemetry.Exporter.OpenTelemetryProtocol-1.12.0Copy head branch name to clipboard