Use DateTime instances in the EF Core/EF 6 queries

src/OpenIddict.EntityFramework/Stores/OpenIddictEntityFrameworkAuthorizationStore.cs

@@ -627,7 +627,7 @@ namespace OpenIddict.EntityFramework
 
                 var authorizations =
                     await (from authorization in Authorizations.Include(authorization => authorization.Tokens)
-                           where authorization.CreationDate < threshold
+                           where authorization.CreationDate < threshold.UtcDateTime
                            where authorization.Status != Statuses.Valid ||
                                 (authorization.Type == AuthorizationTypes.AdHoc && !authorization.Tokens.Any())
                            orderby authorization.Id

src/OpenIddict.EntityFramework/Stores/OpenIddictEntityFrameworkTokenStore.cs

@@ -604,10 +604,10 @@ namespace OpenIddict.EntityFramework
 
                 var tokens = await
                     (from token in Tokens
-                     where token.CreationDate < threshold
+                     where token.CreationDate < threshold.UtcDateTime
                      where (token.Status != Statuses.Inactive && token.Status != Statuses.Valid) ||
                            (token.Authorization != null && token.Authorization.Status != Statuses.Valid) ||
-                            token.ExpirationDate < DateTimeOffset.UtcNow
+                            token.ExpirationDate < DateTime.UtcNow
                      orderby token.Id
                      select token).Skip(offset).Take(1_000).ToListAsync(cancellationToken);
 

src/OpenIddict.EntityFrameworkCore/Stores/OpenIddictEntityFrameworkCoreAuthorizationStore.cs

@@ -707,7 +707,7 @@ namespace OpenIddict.EntityFrameworkCore
 
                 var authorizations =
                     await (from authorization in Authorizations.Include(authorization => authorization.Tokens).AsTracking()
-                           where authorization.CreationDate < threshold
+                           where authorization.CreationDate < threshold.UtcDateTime
                            where authorization.Status != Statuses.Valid ||
                                 (authorization.Type == AuthorizationTypes.AdHoc && !authorization.Tokens.Any())
                            orderby authorization.Id

src/OpenIddict.EntityFrameworkCore/Stores/OpenIddictEntityFrameworkCoreTokenStore.cs

@@ -667,10 +667,10 @@ namespace OpenIddict.EntityFrameworkCore
 
                 var tokens = await
                     (from token in Tokens.AsTracking()
-                     where token.CreationDate < threshold
+                     where token.CreationDate < threshold.UtcDateTime
                      where (token.Status != Statuses.Inactive && token.Status != Statuses.Valid) ||
                            (token.Authorization != null && token.Authorization.Status != Statuses.Valid) ||
-                            token.ExpirationDate < DateTimeOffset.UtcNow
+                            token.ExpirationDate < DateTime.UtcNow
                      orderby token.Id
                      select token).Skip(offset).Take(1_000).ToListAsync(cancellationToken);