repositories.bzl -> third_party/go/repositories.bzl

Let's keep the root of the monorepo tidy. Also, a list of third party
dependencies sounds like it should belong in third_party/, really.

Test Plan: more build file mangling, CI should catch issues

X-Origin-Diff: phab/D392
GitOrigin-RevId: 3fdd7bb430e8b44df7301520657170ce28ba859e
diff --git a/scripts/gazelle.sh b/scripts/gazelle.sh
index f989625..551a608 100755
--- a/scripts/gazelle.sh
+++ b/scripts/gazelle.sh
@@ -4,4 +4,4 @@
 
 ! bazel run //:go mod tidy
 bazel run //:gazelle -- update
-bazel run //:gazelle -- update-repos -from_file=go.mod -to_macro=repositories.bzl%go_repositories -prune=true
+bazel run //:gazelle -- update-repos -from_file=go.mod -to_macro=third_party/go/repositories.bzl%go_repositories -prune=true