Fix nullable warnings.

backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/DefaultAppLogStoreTests.cs

@@ -62,7 +62,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
             A.CallTo(() => requestLogStore.QueryAllAsync(A<Func<Request, Task>>.Ignored, appId.ToString(), dateFrom, dateTo, default))
                 .Invokes(x =>
                 {
-                    var callback = x.GetArgument<Func<Request, Task>>(0);
+                    var callback = x.GetArgument<Func<Request, Task>>(0)!;
 
                     callback(CreateRecord());
                     callback(CreateRecord());

backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/ContentDomainObjectTests.cs

@@ -102,7 +102,7 @@ namespace Squidex.Domain.Apps.Entities.Contents
                 .Returns((app, schema));
 
             A.CallTo(() => scriptEngine.ExecuteAndTransform(A<ScriptContext>.Ignored, A<string>.Ignored))
-                .ReturnsLazily(x => x.GetArgument<ScriptContext>(0).Data!);
+                .ReturnsLazily(x => x.GetArgument<ScriptContext>(0)!.Data!);
 
             patched = patch.MergeInto(data);
 

backend/tests/Squidex.Domain.Users.Tests/DefaultUserResolverTests.cs

@@ -30,7 +30,7 @@ namespace Squidex.Domain.Users
                 .Returns(true);
 
             A.CallTo(() => userManager.NormalizeEmail(A<string>.Ignored))
-                .ReturnsLazily(c => c.GetArgument<string>(0).ToUpperInvariant());
+                .ReturnsLazily(c => c.GetArgument<string>(0)!.ToUpperInvariant());
 
             var serviceProvider = A.Fake<IServiceProvider>();