ci: don't mark v2 wishlished issues as stale

[G-Rath]

Such issues will never not be stale right up until work on v2 starts (and even then they'll likely be stale on and off)

(note I'm not entirely sure if this will work re the spaces - I've found some issues on the action repo that suggest it should, but no actual example docs; I think we just need to try it and see 🤷)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.24%. Comparing base (8541952) to head (0829841).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1131   +/-   ##
=======================================
  Coverage   65.24%   65.24%           
=======================================
  Files         162      162           
  Lines       13424    13424           
=======================================
  Hits         8758     8758           
  Misses       4183     4183           
  Partials      483      483           

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