Roll Tint from 4c4ceeea9d to 767df5f03b (4 revisions)

https://dawn.googlesource.com/tint.git/+log/4c4ceeea9d52..767df5f03b97

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/tint-dawn
Please CC enga@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Bug: None
Tbr: enga@google.com
Change-Id: I134262a9ededd2003b45fa6f63133917119f72f0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/42160
Reviewed-by: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -64,7 +64,7 @@ deps = {
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@4c4ceeea9d52b4e72ccabf3eb5e33b1b5f5a96c1',
+    'url': '{dawn_git}/tint@767df5f03b977da8aacb5f6ae799545ffc2a5a7c',
     'condition': 'dawn_standalone',
   },