[deps] Add missing dependencies in formatter_worker/BUILD.gn

The entrypoint has the imports but we are missing the GN `deps` entry.

R=kimanh@chromium.org

Bug: 503111303,502804868
Change-Id: I89e737f7fbcc2dc34fdf873b5824e15329dbfdaa
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7767450
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>

Author: szuend

front_end/entrypoints/formatter_worker/BUILD.gn

@@ -39,7 +39,11 @@ devtools_foundation_module("formatter_worker") {
 devtools_entrypoint("bundle") {
   entrypoint = "formatter_worker.ts"
 
-  deps = [ ":formatter_worker" ]
+  deps = [
+    ":formatter_worker",
+    "../../third_party/codemirror",
+    "../../third_party/codemirror:codemirror-legacy-types",
+  ]
 
   visibility = [
     ":*",