r-lib/mirai: mirai 2.4.1

New Features Reproducible parallel RNG by setting the seed argument to daemons(): The default NULL uses L'Ecuyer-CMRG RNG streams advanced per daemon, the same as base R's parallel package, which produces statistically-sound yet generally non-reproducible results. Setting an integer seed now initializes a L'Ecuyer-CMRG RNG stream for the compute profile, which is advanced for each mirai evaluation, which does provide reproducible results. Updates everywhere() has been updated for robustness and ease of use: Returns a mirai_map object for easier handling (rather than just a list of mirai). When using dispatcher, no longer has the potential to fail if sending large data (#326). dispatcher() function signature simplified with rs, tls and pass arguments removed (no user-facing impact). Fixes a bug where using non-dispatcher daemons, an unresolvedValue could be returned as the fulfilled value of a promise in extremely rare cases (thanks @James-G-Hill and @olivier7121, #243 and #317). Fixes a regression in mirai 2.4.0 where the L'Ecuyer-CMRG seed was not being passed correctly for remote daemons (#333). Requires nanonext >= 1.6.2.