html: Count <image> attributes state changes as the relevant mutations (#39483)

Follow the HTML specification and take into account that state changes
of the <image> 'crossorigin' and 'referrerpolicy' content attributes
(not 'crossOrigin' and 'referrerPolicy' IDL attributes) should be
counted as relevant mutations.

See https://html.spec.whatwg.org/multipage/#relevant-mutations

Testing: Improvements in the following tests
- html/dom/reflection-embedded.html
-
html/semantics/embedded-content/the-img-element/relevant-mutations.html

Signed-off-by: Andrei Volykhin <andrei.volykhin@gmail.com>

components/script_bindings/codegen/Bindings.conf

@@ -394,7 +394,7 @@ DOMInterfaces = {
 },
 
 'HTMLImageElement': {
-    'canGc': ['RequestSubmit', 'ReportValidity', 'Reset','SetRel', 'Decode', 'SetCrossOrigin', 'SetWidth', 'SetHeight', 'SetReferrerPolicy'],
+    'canGc': ['RequestSubmit', 'ReportValidity', 'Reset','SetRel', 'Decode', 'SetCrossOrigin', 'SetWidth', 'SetHeight'],
 },
 
 'HTMLInputElement': {