[ONOS-5935] Bump up Jackson from 2.7.3 to 2.8.6

Change-Id: I995fb7d8f4dc99bbf2ba53d7a2ef3ec1c8942429
diff --git a/lib/deps.json b/lib/deps.json
index da87794..abc43d7 100644
--- a/lib/deps.json
+++ b/lib/deps.json
@@ -120,9 +120,9 @@
     "httpclient-osgi": "mvn:org.apache.httpcomponents:httpclient-osgi:4.5.1",
     "httpcore-osgi": "mvn:org.apache.httpcomponents:httpcore-osgi:4.4.4",
     "influxdb-java": "mvn:org.influxdb:influxdb-java:2.2",
-    "jackson-annotations": "mvn:com.fasterxml.jackson.core:jackson-annotations:2.7.3",
-    "jackson-core": "mvn:com.fasterxml.jackson.core:jackson-core:2.7.3",
-    "jackson-databind": "mvn:com.fasterxml.jackson.core:jackson-databind:2.7.3",
+    "jackson-annotations": "mvn:com.fasterxml.jackson.core:jackson-annotations:2.8.6",
+    "jackson-core": "mvn:com.fasterxml.jackson.core:jackson-core:2.8.6",
+    "jackson-databind": "mvn:com.fasterxml.jackson.core:jackson-databind:2.8.6",
     "javax.annotation-api": "mvn:javax.annotation:javax.annotation-api:1.2",
     "javax.inject": "mvn:org.glassfish.hk2.external:javax.inject:2.5.0-b30",
     "javax.ws.rs-api": "mvn:javax.ws.rs:javax.ws.rs-api:2.0.1",