Fixed memory leak since CreateSystemViewResolver returned raw pointer (#20800)

Author: n00bcracker

ydb/core/sys_view/common/schema.cpp

@@ -411,12 +411,12 @@ class TSystemViewRewrittenResolver : public ISystemViewResolver {
     THashMap<TString, ESysViewType> SystemViewTypes;
 };
 
-ISystemViewResolver* CreateSystemViewResolver() {
-    return new TSystemViewResolver();
+THolder<ISystemViewResolver> CreateSystemViewResolver() {
+    return MakeHolder<TSystemViewResolver>();
 }
 
-ISystemViewResolver* CreateSystemViewRewrittenResolver() {
-    return new TSystemViewRewrittenResolver();
+THolder<ISystemViewResolver> CreateSystemViewRewrittenResolver() {
+    return MakeHolder<TSystemViewRewrittenResolver>();
 }
 
 } // NSysView

ydb/core/sys_view/common/schema.h

@@ -843,9 +843,9 @@ class ISystemViewResolver {
     virtual const THashMap<TString, NKikimrSysView::ESysViewType>& GetSystemViewsTypes(ETarget target) const = 0;
 };
 
-ISystemViewResolver* CreateSystemViewResolver();
+THolder<ISystemViewResolver> CreateSystemViewResolver();
 
-ISystemViewResolver* CreateSystemViewRewrittenResolver();
+THolder<ISystemViewResolver> CreateSystemViewRewrittenResolver();
 
 } // NSysView
 } // NKikimr