net-mgmt/py-ciscoconfparse: Update to 1.9.52

• Update WWW to spare users from redirects.

• This release is also the last in the 1.x series, and the upstream repo has already been archived with a note that py-ciscoconfparse2, should be used.
  
  Therefore, mark the port as DEPRECATED and set an EXPIRATION_DATE that is long enough so that users who use the quarterly branches have sufficient time in 2026Q4 to make the necessary switch.

Changelog since 1.9.28:

https://github.com/mpenning/ciscoconfparse/blob/1.9.52/CHANGES.md