cargo: Bump rustc to 1.89 (#36818)

Update Rustc to 1.89.

Reviewable by commit.

Leftover work:
- #37330 
- #38777

---------

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Co-authored-by: sagudev <16504129+sagudev@users.noreply.github.com>

components/shared/canvas/webgl.rs

@@ -769,7 +769,7 @@ pub struct ActiveUniformInfo {
 }
 
 impl ActiveUniformInfo {
-    pub fn name(&self) -> Cow<str> {
+    pub fn name(&self) -> Cow<'_, str> {
         if self.size.is_some() {
             let mut name = String::from(&*self.base_name);
             name.push_str("[0]");