Add managed jackson-datatype-jdk8 dependency

Fixes gh-1750

spring-boot-dependencies/pom.xml

@@ -450,6 +450,11 @@
 				<artifactId>jackson-datatype-jsr310</artifactId>
 				<version>${jackson.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>com.fasterxml.jackson.datatype</groupId>
+				<artifactId>jackson-datatype-jdk8</artifactId>
+				<version>${jackson.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>com.gemstone.gemfire</groupId>
 				<artifactId>gemfire</artifactId>