jenkins: add scm polling trigger for jellyfin oidc pipeline

services/jenkins/configmap-jcasc.yaml

@@ -74,6 +74,16 @@ data:
             }
           }
           pipelineJob('jellyfin-oidc-plugin') {
+            properties {
+              pipelineTriggers {
+                triggers {
+                  scmTrigger {
+                    scmpoll_spec('H/5 * * * *')
+                    ignorePostCommitHooks(false)
+                  }
+                }
+              }
+            }
             definition {
               cpsScm {
                 scm {