Fix AppInsights instrumentation key obsolete method usage

[MattMcL4475]

Describe the bug
deploy-cromwell-on-azure.Tests -> D:\a\1\a\deploy-cromwell-on-azure.Tests.dll
##[warning]src\TriggerService\Program.cs(43,25): Warning CS0618: 'ApplicationInsightsLoggingBuilderExtensions.AddApplicationInsights(ILoggingBuilder, string, Action)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsights() overload which accepts Action and set TelemetryConfiguration.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.'
D:\a\1\s\src\TriggerService\Program.cs(43,25): warning CS0618: 'ApplicationInsightsLoggingBuilderExtensions.AddApplicationInsights(ILoggingBuilder, string, Action)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsights() overload which accepts Action and set TelemetryConfiguration.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.' [D:\a\1\s\src\TriggerService\TriggerService.csproj]
##[warning]src\TesApi.Web\Startup.cs(130,36): Warning CS0618: 'ApplicationInsightsExtensions.AddApplicationInsightsTelemetry(IServiceCollection, string)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsightsTelemetry() overload which accepts Action and set ApplicationInsightsServiceOptions.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.'
D:\a\1\s\src\TesApi.Web\Startup.cs(130,36): warning CS0618: 'ApplicationInsightsExtensions.AddApplicationInsightsTelemetry(IServiceCollection, string)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsightsTelemetry() overload which accepts Action and set ApplicationInsightsServiceOptions.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.' [D:\a\1\s\src\TesApi.Web\TesApi.Web.csproj]
##[warning]src\TesApi.Web\Program.cs(50,33): Warning CS0618: 'ApplicationInsightsLoggingBuilderExtensions.AddApplicationInsights(ILoggingBuilder, string)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsights() overload which accepts Action and set TelemetryConfiguration.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.'
D:\a\1\s\src\TesApi.Web\Program.cs(50,33): warning CS0618: 'ApplicationInsightsLoggingBuilderExtensions.AddApplicationInsights(ILoggingBuilder, string)' is obsolete: 'InstrumentationKey based global ingestion is being deprecated. Use the AddApplicationInsights() overload which accepts Action and set TelemetryConfiguration.ConnectionString. See microsoft/ApplicationInsights-dotnet#2560 for more details.' [D:\a\1\s\src\TesApi.Web\TesApi.Web.csproj]
TriggerService -> D:\a\1\a\TriggerService.dll
TesApi.Web -> D:\a\1\a\tesapi.dll
TesApi.Tests -> D:\a\1\a\TesApi.Tests.dll

Steps to Reproduce
See above warnings

Expected behavior
No build warnings

[MattMcL4475]

Fixed by #445