Update to Reactor 2025.0.0-SNAPSHOT

To prepare for the release we should update to Reactor
2025.0.0-SNAPSHOT to fix any issues that are present.

Closes gh-18041

rsocket/src/main/java/org/springframework/security/rsocket/authorization/AuthorizationPayloadInterceptor.java

@@ -55,10 +55,10 @@ public class AuthorizationPayloadInterceptor implements PayloadInterceptor, Orde
 	}
 
 	@Override
+	@SuppressWarnings("NullAway") // https://github.com/uber/NullAway/issues/1290
 	public Mono<Void> intercept(PayloadExchange exchange, PayloadInterceptorChain chain) {
 		return ReactiveSecurityContextHolder.getContext()
-			.filter((c) -> c.getAuthentication() != null)
-			.map(SecurityContext::getAuthentication)
+			.mapNotNull(SecurityContext::getAuthentication)
 			.switchIfEmpty(Mono.error(() -> new AuthenticationCredentialsNotFoundException(
 					"An Authentication (possibly AnonymousAuthenticationToken) is required.")))
 			.as((authentication) -> this.authorizationManager.verify(authentication, exchange))

rsocket/src/main/java/org/springframework/security/rsocket/authorization/PayloadExchangeMatcherReactiveAuthorizationManager.java

@@ -52,12 +52,13 @@ public final class PayloadExchangeMatcherReactiveAuthorizationManager
 	}
 
 	@Override
+	@SuppressWarnings("NullAway") // https://github.com/uber/NullAway/issues/1290
 	public Mono<AuthorizationResult> authorize(Mono<Authentication> authentication, PayloadExchange exchange) {
 		return Flux.fromIterable(this.mappings)
 			.concatMap((mapping) -> mapping.getMatcher()
 				.matches(exchange)
 				.filter(PayloadExchangeMatcher.MatchResult::isMatch)
-				.map(MatchResult::getVariables)
+				.mapNotNull(MatchResult::getVariables)
 				.flatMap((variables) -> mapping.getEntry()
 					.authorize(authentication, new PayloadExchangeAuthorizationContext(exchange, variables))))
 			.next()