Update DevTools rev to ed691cae7fb35f6c77950b0e13746893715e4ec8

DevTools Luci builders are stuck picking up flutter/devtools@3ecaa34. Since that release PR only updates to the latest Flutter version, I'm using an earlier commit as our release commit. If I'm able to resolve the Luci builder issue before the cut-off, I will open another CL to bump this to 3ecaa342fff95b60503030c6045677a1f1043bfb

Change-Id: I008d2346b765b01635eaba7196def5146b9179b1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/459384
Commit-Queue: Elliott Brooks <[email protected]>
Reviewed-by: Samuel Rawlins <[email protected]>

Author: elliette

DEPS

@@ -100,7 +100,7 @@ vars = {
   "boringssl_rev": "6ac7ca19009a23230a21a55d998a5e0c931df195",
   "browser-compat-data_tag": "ac8cae697014da1ff7124fba33b0b4245cc6cd1b", # v1.0.22
   "cpu_features_rev": "936b9ab5515dead115606559502e3864958f7f6e",
-  "devtools_rev": "0327830448901920f739259364c3f2f624df5a03",
+  "devtools_rev": "ed691cae7fb35f6c77950b0e13746893715e4ec8",
   # Use the SHA found in `flutter-candidate.txt` in the devtools repo.
   "flutter_rev": "36ea2bdeab611e908967b6fa57659998f600a2cb",
   "icu_rev": "1b2e3e8a421efae36141a7b932b41e315b089af8",