Fix protobuf dependencies for internal/api and internal/common

This fixes the build. As it turns out, the local `generated` folder
had the side effect of confusing gazelle.

Fixes regression introduced by D216.

Test Plan: Ran scripts/gazelle.sh, protobuf dependencies were re-added.

X-Origin-Diff: phab/D217
GitOrigin-RevId: ac0d5dd89e5fb154fe363a40dc8f8965fa12ba8c
diff --git a/BUILD b/BUILD
index c9adb39..5955dd2 100644
--- a/BUILD
+++ b/BUILD
@@ -1,6 +1,7 @@
 load("@bazel_gazelle//:def.bzl", "gazelle")
 
 # gazelle:prefix git.monogon.dev/source/smalltown.git
+# gazelle:exclude generated
 gazelle(name = "gazelle")
 
 genrule(