Dirty hack to make oauth2.el work with OOB-disabled providers

oauth2.el.diff

--- oauth2.el.orig	2022-12-21 05:13:00.000000000 +0900
+++ oauth2.el	2023-04-11 11:40:27.494107486 +0900
@@ -61,7 +61,7 @@
                       (if (string-match-p "\?" auth-url) "&" "?")
                       "client_id=" (url-hexify-string client-id)
                       "&response_type=code"
-                      "&redirect_uri=" (url-hexify-string (or redirect-uri "urn:ietf:wg:oauth:2.0:oob"))
+                      "&redirect_uri=" (url-hexify-string (or redirect-uri "http://localhost:1/"))
                       (if scope (concat "&scope=" (url-hexify-string scope)) "")
                       (if state (concat "&state=" (url-hexify-string state)) "")))
   (read-string "Enter the code your browser displayed: "))
@@ -106,7 +106,7 @@
 	     (when client-secret
                (concat  "&client_secret=" client-secret))
              "&code=" code
-             "&redirect_uri=" (url-hexify-string (or redirect-uri "urn:ietf:wg:oauth:2.0:oob"))
+             "&redirect_uri=" (url-hexify-string (or redirect-uri "http://localhost:1/"))
              "&grant_type=authorization_code"))))
       (make-oauth2-token :client-id client-id
                          :client-secret client-secret

Original awesome hack:
https://stackoverflow.com/questions/71318804/google-oauth-2-0-failing-with-error-400-invalid-request-for-some-client-id-but/71331562#71331562