minor #17684 [Doctrine] Include % as a Special Character in URIs (miqrogroove)

This PR was merged into the 5.4 branch.

Discussion
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[Doctrine] Include % as a Special Character in URIs

Docs for Doctrine customization should explain that a `%` char might be special in urlencoded string input.

Commits
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f93dc8e Include % as a Special Character in URIs

Author: javiereguiluz

doctrine.rst

@@ -61,7 +61,7 @@ The database connection information is stored as an environment variable called
 .. caution::
 
     If the username, password, host or database name contain any character considered
-    special in a URI (such as ``+``, ``@``, ``$``, ``#``, ``/``, ``:``, ``*``, ``!``),
+    special in a URI (such as ``+``, ``@``, ``$``, ``#``, ``/``, ``:``, ``*``, ``!``, ``%``),
     you must encode them. See `RFC 3986`_ for the full list of reserved characters or
     use the :phpfunction:`urlencode` function to encode them. In this case you need to
     remove the ``resolve:`` prefix in ``config/packages/doctrine.yaml`` to avoid errors: