CHANGELOG: release 0.48.2

[roman-khimov]

I think #3505 and #3507 and bad enough for mainnet to justify a patch release before we merge #3457 (which is the next in queue, but better not be added into .2).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 23.60%. Comparing base (1d9831a) to head (e67e6fa).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3512      +/-   ##
==========================================
- Coverage   23.60%   23.60%   -0.01%     
==========================================
  Files         669      669              
  Lines       50278    50278              
==========================================
- Hits        11867    11866       -1     
- Misses      37491    37492       +1     
  Partials      920      920              

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