[fix] cron should gracefully reload process (closes #5636)

[titanism]

Per https://github.com/Unitech/pm2/issues/5636. This should be at minimum a minor semver bump, but recommended major semver bump.

[CLAassistant]

All committers have signed the CLA.

[rtizzy]

Great work! Just happened to run into this myself while debugging some issues.

Is this going to be brought into mainline anytime soon?

[titanism]

@rtizzy don't forget to set pmx: false to avoid the PM2 memory leak too FYI, these both are unresolved still, not sure if @Unitech is still maintaining PM2 actively or wants help - just let us know if so, we are "titanism" on npm/GitHub and maintain a ton of projects including @forwardemail @spamscanner @ladjs and lots of @koajs stuff.

https://github.com/Unitech/pm2/issues/5145#issuecomment-1737764214

[titanism]

ping @Unitech

[titanism]

ping @Unitech

[titanism]

Ping @Unitech