meraki_alert idempotency error

[oliverl-21]

If you try to create alert settings and rerun the playbook you receive the following error.

An exception occurred during task execution. To see the full traceback, use -vvv. The error was: TypeError: object of type 'NoneType' has no len()
fatal: [localhost]: FAILED! => changed=false 
  module_stderr: |-
    Traceback (most recent call last):
      File "/Users/oliver/.ansible/tmp/ansible-tmp-1661765825.4653141-46321-195993778441786/AnsiballZ_meraki_alert.py", line 107, in <module>
        _ansiballz_main()
      File "/Users/oliver/.ansible/tmp/ansible-tmp-1661765825.4653141-46321-195993778441786/AnsiballZ_meraki_alert.py", line 99, in _ansiballz_main
        invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)
      File "/Users/oliver/.ansible/tmp/ansible-tmp-1661765825.4653141-46321-195993778441786/AnsiballZ_meraki_alert.py", line 47, in invoke_module
        runpy.run_module(mod_name='ansible_collections.cisco.meraki.plugins.modules.meraki_alert', init_globals=dict(_module_fqn='ansible_collections.cisco.meraki.plugins.modules.meraki_alert', _modlib_path=modlib_path),
      File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/runpy.py", line 207, in run_module
        return _run_module_code(code, init_globals, run_name, mod_spec)
      File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/runpy.py", line 97, in _run_module_code
        _run_code(code, mod_globals, init_globals,
      File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/runpy.py", line 87, in _run_code
        exec(code, run_globals)
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/modules/meraki_alert.py", line 353, in <module>
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/modules/meraki_alert.py", line 330, in main
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/module_utils/network/meraki/meraki.py", line 185, in is_update_required
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/module_utils/network/meraki/meraki.py", line 176, in is_update_required
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/module_utils/network/meraki/meraki.py", line 185, in is_update_required
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/module_utils/network/meraki/meraki.py", line 185, in is_update_required
      File "/var/folders/6g/cclk58y94dz5xwsmy4l28xq00000gn/T/ansible_cisco.meraki.meraki_alert_payload_81v94gug/ansible_cisco.meraki.meraki_alert_payload.zip/ansible_collections/cisco/meraki/plugins/module_utils/network/meraki/meraki.py", line 171, in is_update_required
    TypeError: object of type 'NoneType' has no len()
  module_stdout: ''
  msg: |-
    MODULE FAILURE
    See stdout/stderr for the exact error
  rc: 1

#task
  - name: get alert settings
    cisco.meraki.meraki_alert:
      auth_key: "{{ auth_key }}"
      org_name: "{{ org_name }}"
      net_name: Home
      state: present
      alerts:
        - alert_destinations:
            all_admins: no
            snmp: no
          alert_type: "usageAlert"
          enabled: yes
          filters:
            period: 1200
            threshold: 104857600