Implemented reference time parameter

[staabm]

By default comments are checked against todays date.

You might be interested, which comments will expire e.g. within the next 7 days, which can be configured with the referenceTime option.
You need to configure a date parsable by strtotime.

parameters:
    todo_by:
        referenceTime: "now+7days"

It can be especially handy to use a env variable for it, so you can pass the reference date e.g. via the CLI:

parameters:
    todo_by:
        referenceTime: %env.TODOBY_REF_TIME%

TODOBY_REF_TIME="now+7days" vendor/bin/phpstan analyze