- fix a bunch of minor issues and typos that were found using GoLand
and gosec
- add a gosec Makefile target for Groupware related files, in
services/groupware/Makefile
- enable checking JMAP session capabilities for events and contacts,
and only enable skipping that check for tasks until those are
implemented in Stalwart as well
- fix a CWE-190 (integer overflow or wraparound) found by gosec
- consistently use struct references for methods of Groupware and
Request, instead of mixing up references and copies
- always log errors when unable to register a Prometheus metric
cf824b5447