SUMMARY
This PR fixes an issue with the ios_bgp_global module where it fails to handle BGP Autonomous System numbers in ASDOT notation, specifically for the local_as command. The module was previously trying to convert ASDOT notation numbers (e.g., "500.65083") to integers, which caused errors when parsing BGP configurations

To resolve this, we implement deprecation of the "number" parameter in the local_as configuration. The number parameter(type int) has been deprecated in favor of asn(type string) in the bgp_global.py argspec file. This modification allows the module to correctly process ASDOT notation by treating these numbers as strings instead of integers.

Fixes : #1096

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME
cisco.ios.bgp_global

ADDITIONAL INFORMATION
The issue occurred when trying to retrieve or configure BGP information with configurations using ASDOT notation in the local_as command. This resulted in the following error:

fatal: [xxxx]: FAILED! => changed=false 
msg: 'argument ''number'' is of type <class ''float''> found in ''config -> neighbors -> local_as''. and we were unable to convert to int: <class ''float''> cannot be converted to an int'

configuration:

router bgp xxxx
 bgp asnotation dot
 bgp log-neighbor-changes
 bgp deterministic-med
 bgp graceful-restart
 no bgp default ipv4-unicast
 neighbor x.x.x.x remote-as 500.65083
 neighbor x.x.x.x local-as 501.65083 no-prepend replace-as

To fix this, the changes were made in the bgp_global.py argspec, rm templates and config files.

"local_as": {
    "type": "dict",
    "options": {
        "set": {"type": "bool"},
         "number": {
                  "type": "int",
                   "removed_at_date": "2027-01-31",
                   "removed_from_collection": "cisco.ios",
         },
         "asn": {"type": "str"},

These change allows the module to accept and correctly process ASDOT notation in the local_as command. unit and integration tests have been added to verify the correct handling of ASDOT notation in this context.