Fixed the 2 failing Integration Tests.

Author: mikependon

RepoDb.Core/RepoDb/StatementBuilders/BaseStatementBuilder.cs

@@ -365,7 +365,7 @@ public virtual string CreateInsert(string tableName,
             // Primary Key
             if (primaryField != null &&
                 primaryField.HasDefaultValue == false &&
-                !string.Equals(primaryField.Name, identityField.Name, StringComparison.OrdinalIgnoreCase))
+                !string.Equals(primaryField.Name, identityField?.Name, StringComparison.OrdinalIgnoreCase))
             {
                 var isPresent = fields
                     .FirstOrDefault(f =>
@@ -443,7 +443,7 @@ public virtual string CreateInsertAll(string tableName,
             // Primary Key
             if (primaryField != null &&
                 primaryField.HasDefaultValue == false &&
-                !string.Equals(primaryField.Name, identityField.Name, StringComparison.OrdinalIgnoreCase))
+                !string.Equals(primaryField.Name, identityField?.Name, StringComparison.OrdinalIgnoreCase))
             {
                 var isPresent = fields
                     .FirstOrDefault(f =>