[DEPS] Update browsers

Change-Id: I1e9edc884f3bcd5ccbc446fb918279e79fcaef21
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/441002
Reviewed-by: Nicholas Shahan <[email protected]>
Commit-Queue: Mayank Patke <[email protected]>
Auto-Submit: Mayank Patke <[email protected]>
Commit-Queue: Nicholas Shahan <[email protected]>

Author: fishythefish

DEPS

@@ -70,9 +70,9 @@ vars = {
   # self-service update these by following the go/dart-engprod/browsers.md
   # instructions. d8, the V8 shell, is always checked out.
   "checkout_javascript_engines": False,
-  "d8_tag": "version:14.0.45",
-  "jsshell_tag": "version:140.0.1",
-  "jsc_tag": "version:296663",
+  "d8_tag": "version:14.0.253",
+  "jsshell_tag": "version:140.0.4",
+  "jsc_tag": "version:297519",
 
   # https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/clang
   "clang_version": "git_revision:8c7a2ce01a77c96028fe2c8566f65c45ad9408d3",
@@ -163,9 +163,9 @@ vars = {
   # meant to be downloaded by users for local testing. You can self-service
   # update these by following the go/dart-engprod/browsers.md instructions.
   "download_chrome": False,
-  "chrome_tag": "139.0.7258.5",
+  "chrome_tag": "139.0.7258.42",
   "download_firefox": False,
-  "firefox_tag": "140.0.1",
+  "firefox_tag": "140.0.4",
 
   # Emscripten is used in dart2wasm tests.
   "download_emscripten": False,