Update Operations Center Context dependency to 1.7.7
upgrade Jenkins OSS LTS version to 1.580.3
Make Client master auto-registration from environment variables not to require the unused JENKINS_HOME variable
When security settings are being shared between CJOC and client masters, check user API tokens against the token configured on CJOC side. It prevents security issues when the API token due to the token propagation delays.
Provide an easy way to replace CJOC connection details for a client master when the connection with a previous CJOC is not alive anymore.