Add python level locale handling back (#31339)

locale.setlocale() call removed in 6b5291d68f
is actually needed by time.strptime(). AnsibleModule() changes both: environment
variables and python level locale settings so both need to be reset.

(cherry picked from commit fd4a6cf7ad)

lib/ansible/modules/web_infrastructure/letsencrypt.py

@@ -159,6 +159,7 @@ import binascii
 import copy
 import hashlib
 import json
+import locale
 import os
 import re
 import shutil
@@ -789,6 +790,7 @@ def main():
 
     # AnsibleModule() changes the locale, so change it back to C because we rely on time.strptime() when parsing certificate dates.
     module.run_command_environ_update = dict(LANG='C', LC_ALL='C', LC_MESSAGES='C', LC_CTYPE='C')
+    locale.setlocale(locale.LC_ALL, 'C')
 
     cert_days = get_cert_days(module, module.params['dest'])
     if cert_days < module.params['remaining_days']: