fix: error description not url-encoded

[Edsuns]

error.getDescription() is not encoded here:

spring-authorization-server/oauth2-authorization-server/src/main/java/org/springframework/security/oauth2/server/authorization/web/OAuth2AuthorizationEndpointFilter.java

Line 353 in 98e3fe8

uriBuilder.queryParam(OAuth2ParameterNames.ERROR_DESCRIPTION, error.getDescription());

That will cause IllegalArgumentException below:

java.lang.IllegalArgumentException: Invalid character ' ' for QUERY_PARAM in "OAuth 2.0 Parameter: client_id"
	at org.springframework.web.util.HierarchicalUriComponents.verifyUriComponent(HierarchicalUriComponents.java:421) ~[spring-web-6.0.2.jar:6.0.2]
	at org.springframework.web.util.HierarchicalUriComponents.lambda$verify$4(HierarchicalUriComponents.java:389) ~[spring-web-6.0.2.jar:6.0.2]
	at org.springframework.util.UnmodifiableMultiValueMap.lambda$forEach$0(UnmodifiableMultiValueMap.java:114) ~[spring-core-6.0.2.jar:6.0.2]
	at java.base/java.util.Map.forEach(Map.java:713) ~[na:na]

[jgrandja]

Thank you for reporting this @Edsuns. I completely missed the encoding of the OAuth2Error while applying polish to gh-1011. Luckily, I was able to apply the updates via 0cd5940 just before the releases today. Thanks again for the quick feedback! I will close this as a duplicate.