PMM-7 Fix release doc workflow

[ademidoff]

PMM-7

Last failure: https://github.com/percona/pmm/actions/runs/14640797785/job/41145956414

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.07%. Comparing base (c9b7236) to head (c47a4d0).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3946      +/-   ##
==========================================
+ Coverage   42.05%   42.07%   +0.02%     
==========================================
  Files         399      399              
  Lines       50719    50719              
==========================================
+ Hits        21330    21342      +12     
+ Misses      27381    27369      -12     
  Partials     2008     2008              

Flag	Coverage Δ
admin	11.55% <ø> (-0.05%)	⬇️
agent	51.98% <ø> (+0.12%)	⬆️
managed	42.80% <ø> (ø)
vmproxy	68.57% <ø> (ø)

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