v261
userdbctl: enable ssh-authorized-keys logic by default
meson: drop libdl, threads, and librt dependencies
tree-wide: get rid of old dispatch_verb
many: fix remaining check-pointer-deref issues
tree-wide: Introduce sd-forward.h and shared-forward.h headers
tree-wide: Remove unnecessary SIGCHLD blocking
sd-varlink: export sd_varlink_set_sentinel