Rework configuration of scheduled tasks to avoid @Bean method invocations

[vpavic]

Turns out we have the following that were missed in #1345 and #1362:

spring-session/spring-session-data-redis/src/main/java/org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfiguration.java

Lines 283 to 286 in ec82336

	@Override
	public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
	taskRegistrar.addCronTask(() -> sessionRepository().cleanupExpiredSessions(), this.cleanupCron);
	}

spring-session/spring-session-jdbc/src/main/java/org/springframework/session/jdbc/config/annotation/web/http/JdbcHttpSessionConfiguration.java

Lines 261 to 264 in ec82336

	@Override
	public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
	taskRegistrar.addCronTask(() -> sessionRepository().cleanUpExpiredSessions(), this.cleanupCron);
	}