*: git.monogon.dev -> source.monogon.dev

This implements T882, setting our (virtual) GOPATH to source.monogon.dev
for this repository.

Test Plan: Refactor, CI only.

X-Origin-Diff: phab/D686
GitOrigin-RevId: c5e2309089948ffc3a98e68e2e0e1cbb157d3a36
diff --git a/WORKSPACE b/WORKSPACE
index ab8aee2..485e271 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -1,4 +1,4 @@
-workspace(name = "nexantic")
+workspace(name = "dev_source_monogon")
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file")
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "new_git_repository")