[14.0][FIX] contract: fix compute_recurring_next_date for recurring_r…

[mourad-ehm]

contract: fix compute_recurring_next_date for recurring_rule_type = "monthlylastday" before fix : When you change value of recurring_rule_type (ex you pass from "monthly" to "monthlylastday" or "weekly") or you change recurring_invoicing_type (ex: from "post-paid" to "pre-paid") or recurring_interval (every 1 to every 2 "month") ==> the recurring_next_date remain unchanged. ex: recurring_next_date = 2022-07-01 and recurring_rule_type (from "monthly" to "monthlylastday" ) ==> recurring_next_date = 2022-07-01 After fix: When you change value of recurring_rule_type (ex pass from "monthly" to "monthlylastday" or "weekly") or you change recurring_invoicing_type (ex: from "post-paid" to "pre-paid") or recurring_interval (from every 1 to every 2 "month") ==> the recurring_next_date is updated based on this new parameters. ex: recurring_next_date = 2022-07-01 and recurring_rule_type (from "monthly" to "monthlylastday" ) ==> recurring_next_date = 2022-06-30

[mourad-ehm]

ping @pedrobaeza @hparfr

[github-actions[bot]]

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[mourad-ehm]

ping @hparfr