Upgrade to Janino 3.0.16

Closes gh-21153

Author: snicoll

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -84,7 +84,7 @@
 		<!-- deprecated since 2.1 in favor of "jackson-bom.version" -->
 		<jackson.version>2.9.10.20200411</jackson.version>
 		<jackson-bom.version>${jackson.version}</jackson-bom.version>
-		<janino.version>3.0.15</janino.version>
+		<janino.version>3.0.16</janino.version>
 		<javax-activation.version>1.2.0</javax-activation.version>
 		<javax-annotation.version>1.3.2</javax-annotation.version>
 		<javax-cache.version>1.1.1</javax-cache.version>