Upgrade Logback for CVE-2021-42550

h3. Issue Summary In the wake of Log4Shell, CVE-2021-42550 has been created for similar JNDI considerations in Logback. The Logback maintainers have removed some functionality from Logback in response and released Logback 1.2.9. Please note: There is no RCE in Logback, and there is no vulnerabili...