feat(jenkins): Use jenkins ServiceAccount and remove kubeconfig mount

apps/jenkins/deployment.yaml

@@ -13,6 +13,7 @@ spec:
       labels:
         app: jenkins
     spec:
+      serviceAccountName: jenkins
       securityContext:
         fsGroup: 1000
       initContainers:
@@ -70,9 +71,6 @@ spec:
           mountPath: /var/run/docker.sock
         - name: tools-bin
           mountPath: /tmp/tools-bin
-        - name: kubeconfig
-          mountPath: /root/.kube
-          readOnly: true
       volumes:
       - name: jenkins-home
         persistentVolumeClaim:
@@ -83,7 +81,3 @@ spec:
           type: Socket
       - name: tools-bin
         emptyDir: {}
-      - name: kubeconfig
-        hostPath:
-          path: /root/.kube
-          type: Directory