prod: re-enable redirects

Author: pietroalbini

cfg.production.toml

@@ -18,6 +18,9 @@ ${HOMU_SSH_KEY}
 host = '0.0.0.0'
 port = 80
 
+canonical_url = "https://bors.rust-lang.org"
+remove_path_prefixes = ["homu"]
+
 announcement = "We migrated bors to a new home: <a href=\"https://bors.rust-lang.org\">bors.rust-lang.org</a>! Update your bookmarks."
 
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