[DEPS] Update web engines

chrome: 138.0.7204.4
firefox: 139.0
d8: 13.9.44
jsshell: 139.0
jsc: 295506
Change-Id: Ib10be7bc502f3daddaa594feb0a30a2f584ced0f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/431782
Commit-Queue: Nicholas Shahan <[email protected]>
Reviewed-by: Mayank Patke <[email protected]>

Author: nshahan

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:13.8.26",
-  "jsshell_tag": "version:138.0",
-  "jsc_tag": "version:294346",
+  "d8_tag": "version:13.9.44",
+  "jsshell_tag": "version:139.0",
+  "jsc_tag": "version:295506",
 
   # https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/clang
   "clang_version": "git_revision:8c7a2ce01a77c96028fe2c8566f65c45ad9408d3",
@@ -161,9 +161,9 @@ 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": "137.0.7151.40",
+  "chrome_tag": "138.0.7204.4",
   "download_firefox": False,
-  "firefox_tag": "138.0.4",
+  "firefox_tag": "139.0",
 
   # Emscripten is used in dart2wasm tests.
   "download_emscripten": False,