Upgrade to VMware Tanzu GemFire 9.15.0.

Author: jxblum

gradle.properties

@@ -8,7 +8,7 @@ lombokVersion=1.18.24
 micrometerVersion=1.10.0-M3
 mockitoVersion=4.6.1
 multithreadedtcVersion=1.01
-pivotalGemFireVersion=9.10.15
+pivotalGemFireVersion=9.15.0
 springVersion=6.0.0-M4
 springBootVersion=3.0.0-M3
 springDataBomVersion=2022.0.0-M4

pom.xml

@@ -90,7 +90,7 @@
 		<micrometer.version>1.10.0-M3</micrometer.version>
 		<mockito.version>4.6.1</mockito.version>
 		<multithreadedtc.version>1.01</multithreadedtc.version>
-		<pivotal-gemfire.version>9.10.15</pivotal-gemfire.version>
+		<pivotal-gemfire.version>9.15.0</pivotal-gemfire.version>
 		<spring.version>6.0.0-M4</spring.version>
 		<spring-boot.version>3.0.0-M3</spring-boot.version>
 		<spring-data-bom.version>2022.0.0-M4</spring-data-bom.version>