dev(ci): fix linter complaining about git Ref lines

Such as Co-authored-by: and Signed-off-by: lines.

core/cli/ci.el

@@ -162,6 +162,7 @@
           (catch 'found
             (dolist (line refs)
               (cl-destructuring-bind (type . ref) (split-string line " +")
+                (unless (member type '("Co-authored-by:" "Signed-off-by:"))
                   (setq ref (string-join ref " "))
                   (or (string-match "^\\(https?://.+\\|[^/]+/[^/]+\\)?\\(#[0-9]+\\|@[a-z0-9]+\\)" ref)
                       (string-match "^https?://" ref)
@@ -171,7 +172,7 @@
                       (throw 'found
                              (cons 'error
                                    (format "%S is not a valid issue/PR, URL, or 12-char commit hash"
-                                         line))))))))
+                                           line)))))))))
 
         ;; TODO Check that bump/revert SUBJECT list: 1) valid modules and 2)
         ;;      modules whose files are actually being touched.