[update] move migration scripts to 13.0

migrations/14.0.1.0.0/post-migration.py

-# © 2022 Le Filament (<http://www.le-filament.com>)
-# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-
-from openupgradelib import openupgrade  # pylint: disable=W7936
-
-
-def res_company_sheet_range_map_values(env):
-    openupgrade.map_values(
-        env.cr,
-        openupgrade.get_legacy_name("closeout_month"),
-        "closeout_month",
-        [
-            (12842, "1"),
-            (12843, "2"),
-            (12844, "3"),
-            (12845, "4"),
-            (12846, "5"),
-            (12847, "6"),
-            (12848, "7"),
-            (12849, "8"),
-            (12850, "9"),
-            (12851, "10"),
-            (12852, "11"),
-            (12853, "12"),
-        ],
-        table="res_partner",
-    )
-
-
-@openupgrade.migrate()
-def migrate(env, version):
-    res_company_sheet_range_map_values(env)

migrations/14.0.1.0.0/pre-migration.py

-# © 2022 Le Filament (<http://www.le-filament.com>)
-# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-
-from openupgradelib import openupgrade
-
-column_renames = {
-    "res_partner": [("closeout_month", None)],
-}
-
-
-@openupgrade.migrate()
-def migrate(env, version):
-    openupgrade.rename_columns(env.cr, column_renames)