title: Kubernetes Continuous Deploy Plugin having issues
body: <p>I am getting below error while intergrating Kubernetes with Jenkins using Kubernetes Continuous Deploy Plugin.</p>
  <p>This is plugin worked till Jenkins Version 2.190.3 but after upgrading jenkins its started giving below error.</p>
  <p>Below error looks like issue with Yaml file but the yaml file working fine when I executed manually.</p>
  <p>Even I am not able to downgrade the kubernetes version.</p>
  <pre><code>Jenkins Version : 2.235.2
  Kubernetes Continuous Deploy Plugin : 2.3.0
  13:19:19 Starting Kubernetes deployment
  13:19:19 Loading configuration: /var/jenkins_home/workspace/bom_sso/bom_rs_deployment.yaml
  13:19:19 ERROR: ERROR: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Deployment; exception=Class not found: io.kubernetes.client.openapi.models.V1Deployment
  13:19:19 in 'reader', line 1, column 1:
  13:19:19 apiVersion: apps/v1
  13:19:19 ^
  13:19:19
  13:19:19 hudson.remoting.ProxyException: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Deployment; exception=Class not found: io.kubernetes.client.openapi.models.V1Deployment
  13:19:19 in 'reader', line 1, column 1:
  13:19:19 apiVersion: apps/v1
  13:19:19 ^
  13:19:19
  13:19:19 at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:336)
  13:19:19 at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:230)
  </code></pre>
  <p>Thanks,</p>