Fix potential clippy warning for NodeDamage enum variant (#37391)

The default of `enum-variant-name-threshold` is 3, so adding any new
variants will lead to the lint being triggered, reference:

[enum_variant_names](https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names).
This PR fix this potential clippy lint warning for facilitate the
addition of new variant in following PR about incremental box tree
update.

Testing: No logic changed, just covered by existing WPT tests
Fixes: None

Signed-off-by: sharpshooter_pt <ibluegalaxy_taoj@163.com>

components/script/dom/shadowroot.rs

@@ -215,7 +215,7 @@ impl ShadowRoot {
         self.author_styles.borrow_mut().stylesheets.force_dirty();
         // Mark the host element dirty so a reflow will be performed.
         if let Some(host) = self.host.get() {
-            host.upcast::<Node>().dirty(NodeDamage::NodeStyleDamaged);
+            host.upcast::<Node>().dirty(NodeDamage::Style);
         }
     }