[jenkins] docs - add deprecation note (#382)
[jenkins] docs - add deprecation note (#382)

* Add deprecated message to jenkins agent check

* minor edit

StackVista/sts-agent-integrations-core,itsuugo/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,itsuugo/integrations-core,StackVista/sts-agent-integrations-core,serverdensity/sd-agent-core-plugins,s-maj/integrations-core,DataDog/integrations-core,StackVista/sts-agent-integrations-core,s-maj/integrations-core,varlib1/servermall,DataDog/integrations-core,DataDog/integrations-core,serverdensity/sd-agent-core-plugins,StackVista/sts-agent-integrations-core,itsuugo/integrations-core,s-maj/integrations-core,s-maj/integrations-core,s-maj/integrations-core,varlib1/servermall,varlib1/servermall,serverdensity/sd-agent-core-plugins,itsuugo/integrations-core,StackVista/sts-agent-integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,serverdensity/sd-agent-core-plugins,varlib1/servermall,itsuugo/integrations-core,serverdensity/sd-agent-core-plugins,varlib1/servermall