Upgrade Jenkins Master default docker image to latest LTS

Current plugin versions require at least Jenkins 2.289

Signed-off-by: Manuel Traut <manuel.traut@mt.com>

chart/jenkins-operator/values.yaml

@@ -30,7 +30,7 @@ jenkins:
   # image is the name (and tag) of the Jenkins instance
   # Default: jenkins/jenkins:lts
   # It's recommended to use LTS (tag: "lts") version
-  image: jenkins/jenkins:2.277.4-lts-alpine
+  image: jenkins/jenkins:2.303.2-lts-alpine
 
   # env contains jenkins container environment variables
   env: []

config/samples/jenkins.io_v1alpha2_jenkins.yaml

@@ -19,7 +19,7 @@ spec:
     disableCSRFProtection: false
     containers:
       - name: jenkins-master
-        image: jenkins/jenkins:2.277.4-lts-alpine
+        image: jenkins/jenkins:2.303.2-lts-alpine
         imagePullPolicy: Always
         livenessProbe:
           failureThreshold: 12

pkg/constants/constants.go

@@ -8,7 +8,7 @@ const (
 	// SeedJobSuffix is a suffix added for all seed jobs
 	SeedJobSuffix = "job-dsl-seed"
 	// DefaultJenkinsMasterImage is the default Jenkins master docker image
-	DefaultJenkinsMasterImage = "jenkins/jenkins:2.277.4-lts-alpine"
+	DefaultJenkinsMasterImage = "jenkins/jenkins:2.303.2-lts-alpine"
 	// DefaultHTTPPortInt32 is the default Jenkins HTTP port
 	DefaultHTTPPortInt32 = int32(8080)
 	// DefaultSlavePortInt32 is the default Jenkins port for slaves