Update dependencies

[kal]

Java 11 -> 21
appbase 3.1.4 -> 4.0.0
derby 10.14 -> 10.17
javax.servlet -> jakarta.servlet 6.0
Update tests to Jupiter API
Added logback configuration for tests
Addresses #13

[kal]

@der - there are two remaining items to consider

1. Whether to move to Shiro 2 - I don't think there's a pressing need to do so
2. Whether to replace openid4java which is a dead project, but not sure what to replace it with

[der]

@der - there are two remaining items to consider

1. Whether to move to Shiro 2 - I don't think there's a pressing need to do so

Agreed, leave as is for now.

2. Whether to replace openid4java which is a dead project, but not sure what to replace it with

Leave I think. The only deployed use of OIDC was in registry-core which these days has it's own copy of the relevant bits of appbase-security and doesn't depend on this code base.

[der]

Changes look good to me, thanks yet again.We could