Upgrade MediatR version to 12.4.1

Author: sheffer21

Directory.Packages.props

@@ -53,7 +53,7 @@
     <PackageVersion Include="System.Collections.Immutable" Version="7.0.0" />
     <PackageVersion Include="System.Threading.Channels" Version="7.0.0" />
     <PackageVersion Include="Microsoft.Reactive.Testing" Version="6.0.1" />
-    <PackageVersion Include="MediatR" Version="9.0.0" />
+    <PackageVersion Include="MediatR" Version="12.4.1" />
     <PackageVersion Include="Bogus" Version="35.6.1" />
     <PackageVersion Include="Snapper" Version="2.4.1" />
     <PackageVersion Include="Xunit.SkippableFact" Version="1.4.13" />

src/Dap.Protocol/AbstractHandlers.cs

@@ -15,7 +15,7 @@ public abstract class Request<TParams, TResult> :
         }
 
         public abstract class Notification<TParams> : IJsonRpcRequestHandler<TParams>
-            where TParams : IRequest
+            where TParams : IRequest<Unit>
         {
             public abstract Task<Unit> Handle(TParams request, CancellationToken cancellationToken);
         }

src/Dap.Protocol/Feature/Events/BreakpointFeature.cs

@@ -83,7 +83,7 @@ namespace Events
         [GenerateHandler]
         [GenerateHandlerMethods]
         [GenerateRequestMethods]
-        public record BreakpointEvent : IRequest
+        public record BreakpointEvent : IRequest<Unit>
         {
             /// <summary>
             /// The reason for the event.

src/Dap.Protocol/Feature/Events/CapabilitiesFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Models;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Serialization;
 using OmniSharp.Extensions.JsonRpc;
@@ -238,7 +238,7 @@ namespace Events
         [GenerateHandler]
         [GenerateHandlerMethods]
         [GenerateRequestMethods]
-        public record CapabilitiesEvent : IRequest
+        public record CapabilitiesEvent : IRequest<Unit>
         {
             /// <summary>
             /// The set of updated capabilities.

src/Dap.Protocol/Feature/Events/ContinuedFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Serialization;
 using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.JsonRpc.Generation;
@@ -15,7 +15,7 @@ namespace Events
             GenerateHandlerMethods,
             GenerateRequestMethods
         ]
-        public record ContinuedEvent : IRequest
+        public record ContinuedEvent : IRequest<Unit>
         {
             /// <summary>
             /// The thread which was continued.

src/Dap.Protocol/Feature/Events/ExitedFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.JsonRpc.Generation;
 
@@ -14,7 +14,7 @@ namespace Events
             GenerateHandlerMethods,
             GenerateRequestMethods
         ]
-        public record ExitedEvent : IRequest
+        public record ExitedEvent : IRequest<Unit>
         {
             /// <summary>
             /// The exit code returned from the debuggee.

src/Dap.Protocol/Feature/Events/InitializedFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.JsonRpc.Generation;
 
@@ -12,6 +12,6 @@ namespace Events
         [GenerateHandler(Name = "DebugAdapterInitialized")]
         [GenerateHandlerMethods]
         [GenerateRequestMethods]
-        public record InitializedEvent : IRequest;
+        public record InitializedEvent : IRequest<Unit>;
     }
 }

src/Dap.Protocol/Feature/Events/InvalidatedFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Models;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Serialization;
 using OmniSharp.Extensions.JsonRpc;
@@ -16,7 +16,7 @@ namespace Events
             GenerateHandlerMethods,
             GenerateRequestMethods
         ]
-        public record InvalidatedEvent : IRequest
+        public record InvalidatedEvent : IRequest<Unit>
         {
             /// <summary>
             /// Optional set of logical areas that got invalidated. This property has a

src/Dap.Protocol/Feature/Events/LoadedSourceFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Models;
 using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.JsonRpc.Generation;
@@ -13,7 +13,7 @@ namespace Events
         [GenerateHandler]
         [GenerateHandlerMethods]
         [GenerateRequestMethods]
-        public record LoadedSourceEvent : IRequest
+        public record LoadedSourceEvent : IRequest<Unit>
         {
             /// <summary>
             /// The reason for the event.

src/Dap.Protocol/Feature/Events/ModuleFeature.cs

@@ -1,4 +1,4 @@
-using MediatR;
+using MediatR;
 using OmniSharp.Extensions.DebugAdapter.Protocol.Models;
 using OmniSharp.Extensions.JsonRpc;
 using OmniSharp.Extensions.JsonRpc.Generation;
@@ -13,7 +13,7 @@ namespace Events
         [GenerateHandler]
         [GenerateHandlerMethods]
         [GenerateRequestMethods]
-        public record ModuleEvent : IRequest
+        public record ModuleEvent : IRequest<Unit>
         {
             /// <summary>
             /// The reason for the event.