Updated Jenkins version to 2.86

Change-Id: I79df2214cde68f1d0e39ce842f0a7b9f4cda918e
diff --git a/Dockerfile b/Dockerfile
index 68a5104..3353545 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,10 +36,10 @@
 
 # jenkins version being bundled in this docker image
 ARG JENKINS_VERSION
-ENV JENKINS_VERSION ${JENKINS_VERSION:-2.83}
+ENV JENKINS_VERSION ${JENKINS_VERSION:-2.86}
 
 # jenkins.war checksum, download will be validated using it
-ARG JENKINS_SHA=7f99c4ae050a1733390578145b8490bfe5d09f0132067bf05d18f2b6be953d8e
+ARG JENKINS_SHA=207aac187882bcddf665cdee78daa2fd8642f94c02d731b9ea18fdc985640ea5
 
 # Can be used to customize where jenkins.war get downloaded from
 ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war