Update Jackson Databind to 2.9.9
Due to new security vulerablility.
@@ -7,7 +7,7 @@ ext {
slf4j : "1.7.25",
guava : "20.0", // Last version to support Java 7
- jackson : "2.9.8", // https://nvd.nist.gov/vuln/detail/CVE-2018-1000873
+ jackson : "2.9.9", // https://nvd.nist.gov/vuln/detail/CVE-2019-12086
spock : "1.3-groovy-$spockGroovyVer",
groovy : groovyVer,
