adjusted unit tests for Model feature

Author: boyko-ant

src/Test/SolidifyProject.Engine.Test.Unit/Infrastructure/Models/PageModelTest.cs

@@ -146,7 +146,7 @@ public void ParseModelMultipleItemsTest()
 
             var actualModel = new PageModel { ContentRaw = @"
                 Model.goods:            Data.goods
-                Model.bannerUrl:        Data.banner.url
+                model.bannerUrl:        Data.banner.url
                 ---
             "};
 
@@ -178,7 +178,7 @@ public void ParseModelComplexMultipleItemsTest()
 
             var actualModel = new PageModel { ContentRaw = @"
                 Model.category.goods:            Data.goods
-                Model.category.bannerUrl:        Data.banner.url
+                model.category.bannerUrl:        Data.banner.url
                 ---
             "};