cli (base): new `a_quit` method to run async cleaning methods: it may be necessary to run some async cleaning method (e.g. if bridge is needed), this new method handles async cleaning method, and will be called when `SystemExit` is used, or if `a_quit` is called explicitely. rel 426

FROM libervia/prosody:e2e

LABEL maintainer="Goffi <tmp_dockerfiles@goffi.org>"

RUN prosodyctl register demo server1.test demo