housekeeping: add extra branches to version.json (#2434)

* housekeeping: add extra branches to version.json

* Fix regex

Author: glennawatson

version.json

@@ -2,6 +2,8 @@
   "version": "11.4",
   "publicReleaseRefSpec": [
     "^refs/heads/master$", // we release out of master
+    "^refs/heads/main$",
+    "^refs/heads/latest$",
     "^refs/heads/preview/.*", // we release previews
     "^refs/heads/rel/\\d+\\.\\d+\\.\\d+" // we also release branches starting with rel/N.N.N
   ],