Update to Spring Boot 2.2.11

Closes gh-9246

gradle.properties

@@ -1,6 +1,6 @@
 aspectjVersion=1.9.6
 gaeVersion=1.9.82
-springBootVersion=2.2.10.RELEASE
+springBootVersion=2.2.11.RELEASE
 version=5.3.6.BUILD-SNAPSHOT
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError
 kotlinVersion=1.3.72