Roll test262 for upstream test fix

https://github.com/tc39/test262/commit/f6b2ccdd091ff82da54150796297c3a96d7edb41

Bug: v8:7834
Change-Id: I826a5218d9a7629adffeaa840e996575b50e1606
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2076689
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66473}

DEPS

@@ -192,7 +192,7 @@ deps = {
   'v8/test/mozilla/data':
     Var('chromium_url') + '/v8/deps/third_party/mozilla-tests.git' + '@' + 'f6c578a10ea707b1a8ab0b88943fe5115ce2b9be',
   'v8/test/test262/data':
-    Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + '6d4b62614b966b47cfb4f7ba2c3f0e6a0d091519',
+    Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + 'f6b2ccdd091ff82da54150796297c3a96d7edb41',
   'v8/test/test262/harness':
     Var('chromium_url') + '/external/github.com/test262-utils/test262-harness-py.git' + '@' + '4555345a943d0c99a9461182705543fb171dda4b',
   'v8/third_party/qemu-linux-x64': {