upgrade webkit (#17889)

cmake/tools/SetupWebKit.cmake

@@ -2,7 +2,7 @@ option(WEBKIT_VERSION "The version of WebKit to use")
 option(WEBKIT_LOCAL "If a local version of WebKit should be used instead of downloading")
 
 if(NOT WEBKIT_VERSION)
-  set(WEBKIT_VERSION f14adff4c39ba08174b84a942f9584028fc9a7ae)
+  set(WEBKIT_VERSION de0b8bec75574eae9b71c979525c6a8fcee1986f)
 endif()
 
 string(SUBSTRING ${WEBKIT_VERSION} 0 16 WEBKIT_VERSION_PREFIX)

test/regression/issue/17766.test.ts

@@ -0,0 +1,31 @@
+test("17766 minimal", () => {
+  expect(/^(?:H|Hangul)$/.test("Hangul")).toBe(true);
+});
+test("17766 acorn", () => {
+  expect(require("acorn").parse("/\\p{Script=Hangul}/u", { ecmaVersion: 2025 })).toMatchInlineSnapshot(`
+    Node {
+      "body": [
+        Node {
+          "end": 20,
+          "expression": Node {
+            "end": 20,
+            "raw": "/\\p{Script=Hangul}/u",
+            "regex": {
+              "flags": "u",
+              "pattern": "\\p{Script=Hangul}",
+            },
+            "start": 0,
+            "type": "Literal",
+            "value": /\\p{Script=Hangul}/u,
+          },
+          "start": 0,
+          "type": "ExpressionStatement",
+        },
+      ],
+      "end": 20,
+      "sourceType": "script",
+      "start": 0,
+      "type": "Program",
+    }
+  `);
+});