webstreams: rename unknown primordial

The primordials does not expose a primordial called `DataViewCtor`,
leading up to a non-existent constructor.

Fixes: #40612

lib/internal/webstreams/readablestream.js

@@ -7,7 +7,7 @@ const {
   ArrayBufferPrototypeSlice,
   ArrayPrototypePush,
   ArrayPrototypeShift,
-  DataViewCtor,
+  DataViewPrototypeConstructor,
   FunctionPrototypeBind,
   FunctionPrototypeCall,
   MathMin,
@@ -2100,7 +2100,7 @@ function readableByteStreamControllerPullInto(
     pendingPullIntos,
   } = controller[kState];
   let elementSize = 1;
-  let ctor = DataViewCtor;
+  let ctor = DataViewPrototypeConstructor;
   if (isArrayBufferView(view) && !isDataView(view)) {
     elementSize = view.constructor.BYTES_PER_ELEMENT;
     ctor = view.constructor;