script: Pass &mut JSContext to children_changed and adopting_steps (#43219)

Switch `VirtualMethods::children_changed` and
`VirtualMethods::adopting_steps` to `&mut JSContext`.

Testing: No behaviour change, a successful build is enough.
Part of #40600

---------

Signed-off-by: Gae24 <96017547+Gae24@users.noreply.github.com>

components/script/dom/html/htmltablesectionelement.rs

@@ -101,14 +101,9 @@ impl HTMLTableSectionElementMethods<crate::DomTypeHolder> for HTMLTableSectionEl
     }
 
     /// <https://html.spec.whatwg.org/multipage/#dom-tbody-deleterow>
-    fn DeleteRow(&self, index: i32) -> ErrorResult {
+    fn DeleteRow(&self, cx: &mut JSContext, index: i32) -> ErrorResult {
         let node = self.upcast::<Node>();
-        node.delete_cell_or_row(
-            index,
-            || self.Rows(),
-            |n| n.is::<HTMLTableRowElement>(),
-            CanGc::note(),
-        )
+        node.delete_cell_or_row(cx, index, || self.Rows(), |n| n.is::<HTMLTableRowElement>())
     }
 }