disable warn at BatchBase.Context

Author: nogic1008

src/MicroBatchFramework/BatchBase.cs

@@ -2,6 +2,10 @@
 {
     public abstract class BatchBase
     {
-        public BatchContext? Context { get; set; }
+        // Context will be set non-null value by BatchEngine,
+        // but it might be null because it has public setter.
+        #nullable disable warnings
+        public BatchContext Context { get; set; }
+        #nullable restore warnings
     }
 }