This commit configures security features for Spring GraphQL.
In the case of both MVC and WebFlux, this contributes
`DataFetcherExceptionResolver` instances to resolve security exceptions
and expose them as proper errors in the GraphQL response.
For MVC only, this also configures a
`SecurityContextThreadLocalAccessor`. This component ensures that the
security context is propagated between `ThreadLocal` and the Reactor
asynchronous execution.
See gh-29140
6dbcd0e95e