GHSA-V7HC-87JC-QRRR eventing-github vulnerable to denial of service caused by improper enforcement of the timeout on individual read operations

Impact The eventing-github cluster-local server doesn't set ReadHeaderTimeout‬‭ which could lead do a DDoS‬ ‭attack, where a large group of users send requests to the server causing the server to hang‬ ‭for long enough to deny it from being available to other users, also know as a Slowloris‬...