Update Yuku parser to v0.9.4 (#19993)

Co-authored-by: fisker <lionkay@gmail.com>

tests/format/js/_errors_/identifier/__snapshots__/format.test.js.snap

@@ -91,17 +91,17 @@ Cause: Invalid character."
 `;
 
 exports[`invalid-escape-in-identifier.js format[yuku] 1`] = `
-"Invalid character at start of identifier (1:6)
+"Invalid character at start of identifier (1:8)
 > 1 | const \\u{20} = 1
-    |      ^^
+    |        ^
   2 | const \\u{3000} = 1
   3 |"
 `;
 
 exports[`invalid-escape-in-identifier.js format[yuku-ts] 1`] = `
-"Invalid character at start of identifier (1:6)
+"Invalid character at start of identifier (1:8)
 > 1 | const \\u{20} = 1
-    |      ^^
+    |        ^
   2 | const \\u{3000} = 1
   3 |"
 `;
@@ -187,15 +187,15 @@ Cause: Invalid character."
 `;
 
 exports[`invalid-escape-in-identifier-2.js format[yuku] 1`] = `
-"Invalid Unicode escape sequence (1:1)
+"Invalid Unicode escape sequence (1:3)
 > 1 | a\\ = a
-    | ^^
+    |   ^
   2 |"
 `;
 
 exports[`invalid-escape-in-identifier-2.js format[yuku-ts] 1`] = `
-"Invalid Unicode escape sequence (1:1)
+"Invalid Unicode escape sequence (1:3)
 > 1 | a\\ = a
-    | ^^
+    |   ^
   2 |"
 `;