[C#] fix: failure to load prompt due to json serialization error

[singhk97]

Linked issues

closes: #minor (issue number)

Details

• Bumping JsonSchema to v6.1.2 so that it uses Json.More.Net version 2.x
• Fixed a test failure in a previous PR (.net build was not run)

Change details

Exception

Microsoft.Teams.AI.Exceptions.TeamsAIException: Error while loading prompt. Method not found: \u0027!!0 Json.More.JsonSerializerOptionsExtensions.Read(System.Text.Json.JsonSerializerOptions, System.Text.Json.Utf8JsonReader ByRef)\u0027.\r\n   at Microsoft.Teams.AI.AI.Prompts.PromptManager._LoadPromptTemplateFromFile(String name)\r\n   at Microsoft.Teams.AI.AI.Prompts.PromptManager.GetPrompt(String name)\r\n   at Program.\u003C\u003Ec__DisplayClass0_1.\u003C\u003C\u003CMain\u003E$\u003Eb__14\u003Ed.MoveNext() in C:\\TFS\\Icertis.AI.M365Copilot\\Icertis.AI.M365Copilot.App\\Program.cs:line 148\r\n--- End of stack trace from previous location ---\r\n   at Microsoft.Teams.AI.AI.Planners.ActionPlanner\u00601.ContinueTaskAsync(ITurnContext context, TState state, AI\u00601 ai, CancellationToken cancellationToken)\r\n   at Microsoft.Teams.AI.AI.Planners.ActionPlanner\u00601.BeginTaskAsync(ITurnContext context, TState state, AI\u00601 ai, CancellationToken cancellationToken)\r\n   at Microsoft.Teams.AI.AI.AI\u00601.RunAsync(ITurnContext turnContext, TState turnState, Nullable\u00601 startTime, Int32 stepCount, CancellationToken cancellationToken)\r\n   at Microsoft.Teams.AI.Application\u00601._OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken)\r\n   at Microsoft.Teams.AI.Application\u00601.OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken)\r\n   at Microsoft.Teams.AI.Application.Authentication.Bot.FilteredTeamsSSOTokenExchangeMiddleware.OnTurnAsync(ITurnContext turnContext, NextDelegate next, CancellationToken cancellationToken)\r\n   at Microsoft.Bot.Builder.MiddlewareSet.ReceiveActivityWithStatusAsync(ITurnContext turnContext, BotCallbackHandler callback, CancellationToken cancellationToken)\r\n   at Microsoft.Bot.Builder.BotAdapter.RunPipelineAsync(ITurnContext turnContext, BotCallbackHandler callback, CancellationToken cancellationToken)

Attestation Checklist

• My code follows the style guidelines of this project

• I have checked for/fixed spelling, linting, and other errors

• I have commented my code for clarity

• I have made corresponding changes to the documentation (updating the doc strings in the code is sufficient)

• My changes generate no new warnings

• I have added tests that validates my changes, and provides sufficient test coverage. I have tested with:

  • Local testing
  • E2E testing in Teams

• New and existing unit tests pass locally with my changes