Keep serialVersionUID of SimpleGrantedAuthority constant

[quaff]

InvalidClassException raised every time upgrade spring-security, please keep it if nothing changed, It's not recommended to change it.

Caused by: org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is java.io.InvalidClassException: org.springframework.security.core.authority.SimpleGrantedAuthority; local class incompatible: stream classdesc serialVersionUID = 510, local class serialVersionUID = 500
	at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:78) ~[spring-core-5.0.7.jar:5.0.7.RELEASE]
	at org.springframework.core.serializer.support.DeserializingConverter.convert(DeserializingConverter.java:36) ~[spring-core-5.0.7.jar:5.0.7.RELEASE]
	at org.springframework.data.redis.serializer.JdkSerializationRedisSerializer.deserialize(JdkSerializationRedisSerializer.java:82) ~[spring-data-redis-2.0.3.jar:2.0.3.RELEASE]
	... 72 more
Caused by: java.io.InvalidClassException: org.springframework.security.core.authority.SimpleGrantedAuthority; local class incompatible: stream classdesc serialVersionUID = 510, local class serialVersionUID = 500
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:689) ~[?:?]
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1903) ~[?:?]
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1772) ~[?:?]
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2060) ~[?:?]
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1594) ~[?:?]
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:430) ~[?:?]

[rwinch]

Thanks for the report. Spring Security is not intended to be serialized between versions. See #1945