[FIX] base: avoid deprecation warning

Using or importing the ABCs from 'collections' instead of from 'collections.abc'
is deprecated since Python 3.3, and in 3.9 it will stop working.

closes odoo/odoo#60722

X-original-commit: b6907f8fad3b27400a4c2e4a046ed0f02869f863
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>
Signed-off-by: Thomas Dieuzeide <tdi-odoo@users.noreply.github.com>

odoo/addons/base/models/res_bank.py

@@ -2,7 +2,7 @@
 
 import re
 
-import collections
+from collections.abc import Iterable
 
 from odoo import api, fields, models, _
 from odoo.osv import expression
@@ -116,7 +116,7 @@ class ResPartnerBank(models.Model):
             if args[pos][0] == 'acc_number':
                 op = args[pos][1]
                 value = args[pos][2]
-                if not isinstance(value, str) and isinstance(value, collections.Iterable):
+                if not isinstance(value, str) and isinstance(value, Iterable):
                     value = [sanitize_account_number(i) for i in value]
                 else:
                     value = sanitize_account_number(value)