Add -webkit-scrollbar pseudo-elements to ignored prefixes

Author: silaslenz

.changeset/lovely-drinks-sort.md

@@ -0,0 +1,5 @@
+---
+'@emotion/sheet': patch
+---
+
+Do not log failed rule insertions in the speedy mode for even more vendor-prefixed pseudo-elements/classes like `-webkit-scrollbar-button`, `-webkit-scrollbar-thumb` and `-webkit-scrollbar-track`.

packages/sheet/src/index.js

@@ -147,7 +147,7 @@ export class StyleSheet {
       } catch (e) {
         if (
           process.env.NODE_ENV !== 'production' &&
-          !/:(-moz-placeholder|-moz-focus-inner|-moz-focusring|-ms-input-placeholder|-moz-read-write|-moz-read-only|-ms-clear|-ms-expand|-ms-reveal){/.test(
+          !/:(-moz-placeholder|-moz-focus-inner|-moz-focusring|-ms-input-placeholder|-moz-read-write|-moz-read-only|-ms-clear|-ms-expand|-ms-reveal|-webkit-scrollbar-button:.*|-webkit-scrollbar-thumb:.*|-webkit-scrollbar-track:.*){/.test(
             rule
           )
         ) {