cloud: Update jackson to fix vulnerabities

Change-Id: I6e9035b4f3ac7aa8659ef113b3a5c64d3f08951b
Relate-to: https://nvd.nist.gov/vuln/detail/CVE-2018-12022Signed-off-by: Philippe Coval <p.coval@samsung.com>

cloud/stack/pom.xml

@@ -49,6 +49,7 @@
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
+			<version>[2.8.11.1,)</version>
 		</dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.dataformat</groupId>