add SkVMBuilders.* to DM deps in G3

Needed since https://skia-review.googlesource.com/c/skia/+/218041

Change-Id: I914c22e62d96b423041e4810a41b892789030510
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/218336
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Ravi Mistry <rmistry@google.com>
diff --git a/public.bzl b/public.bzl
index 2b52e15..7676751 100644
--- a/public.bzl
+++ b/public.bzl
@@ -474,6 +474,8 @@
         "tools/ResourceFactory.h",
         "tools/Resources.cpp",
         "tools/Resources.h",
+        "tools/SkVMBuilders.cpp",
+        "tools/SkVMBuilders.h",
         "tools/UrlDataManager.cpp",
         "tools/UrlDataManager.h",
         "tools/debugger/*.cpp",