Upgrade to Spring Boot 3.0.0-M4.

Author: jxblum

gradle.properties

@@ -9,7 +9,7 @@ multithreadedtcVersion=1.01
 pivotalCloudCacheVersion=1.14.4
 pivotalGemFireVersion=9.15.0
 springVersion=6.0.0-M5
-springBootVersion=3.0.0-SNAPSHOT
+springBootVersion=3.0.0-M4
 springCloudBindingsVersion=1.10.0
 springDataBomVersion=2022.0.0-M5
 springDataGeodeVersion=3.0.0-M5