add enforcer rule / multiple component upgrades

[liweinan]

• resteasy-spring-boot / add enforcer rule for the project #192
• resteasy-spring-boot / update springframework to 6.0.0-RC4
• resteasy-spring-boot / update springboot version to 3.0.0-RC2

[liweinan]

@jamezp I will squash the commits after review.