Upgrade to core Spring Framework 6.0.0-M6.

Author: jxblum

gradle.properties

@@ -9,7 +9,7 @@ micrometerVersion=1.10.0-M6
 mockitoVersion=4.8.0
 multithreadedtcVersion=1.01
 pivotalGemFireVersion=9.15.2
-springVersion=6.0.0-M5
+springVersion=6.0.0-M6
 springBootVersion=3.0.0-M3
 springDataBomVersion=2022.0.0-M5
 springDataGeodeVersion=3.0.0-M5

pom.xml

@@ -91,7 +91,7 @@
 		<mockito.version>4.8.0</mockito.version>
 		<multithreadedtc.version>1.01</multithreadedtc.version>
 		<pivotal-gemfire.version>9.15.2</pivotal-gemfire.version>
-		<spring.version>6.0.0-M5</spring.version>
+		<spring.version>6.0.0-M6</spring.version>
 		<spring-boot.version>3.0.0-M3</spring-boot.version>
 		<spring-data-bom.version>2022.0.0-M5</spring-data-bom.version>
 		<spring-shell.version>1.2.0.RELEASE</spring-shell.version>