style: Switch all callsites of try() to try_parse() in the style crate.

Fully automated via:

  $ rg -l '\.try\(' | xargs sed -i 's/\.try(/.try_parse(/g'
  $ cd servo/components/style && cargo +nightly fmt

Differential Revision: https://phabricator.services.mozilla.com/D80099

components/style/values/generics/size.rs

@@ -63,7 +63,7 @@ impl<L> Size2D<L> {
     {
         let first = parse_one(context, input)?;
         let second = input
-            .try(|i| parse_one(context, i))
+            .try_parse(|i| parse_one(context, i))
             .unwrap_or_else(|_| first.clone());
         Ok(Self::new(first, second))
     }