Use flatc's `--require-explicit-ids` for Go as well

We forgot about this option when adding Go support.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I06545b937307334fe6598caf696b65e7070f511c
diff --git a/third_party/flatbuffers/build_defs.bzl b/third_party/flatbuffers/build_defs.bzl
index 98cc897..d66e271 100644
--- a/third_party/flatbuffers/build_defs.bzl
+++ b/third_party/flatbuffers/build_defs.bzl
@@ -35,6 +35,7 @@
 DEFAULT_FLATC_GO_ARGS = [
     "--gen-onefile",
     "--gen-object-api",
+    "--require-explicit-ids",
 ]
 
 DEFAULT_FLATC_TS_ARGS = [