Upgrade to Spring Boot 2.2.13.RELEASE.

Author: jxblum

gradle.properties

@@ -6,7 +6,7 @@ mockitoVersion=3.7.7
 multithreadedtcVersion=1.01
 pivotalGemFireVersion=9.8.10
 springVersion=5.2.12.RELEASE
-springBootVersion=2.2.13.BUILD-SNAPSHOT
+springBootVersion=2.2.13.RELEASE
 springDataGemFireVersion=2.2.12.RELEASE
 springDataGeodeVersion=2.2.12.RELEASE
 springDataGeodeTestVersion=0.0.14.RELEASE