PMM-14515 Bump PT.

[JiriCtvrtka]

PMM-14515

FB: Percona-Lab/pmm-submodules#4174

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.90%. Comparing base (4e3b1ff) to head (30a38f5).
⚠️ Report is 2 commits behind head on v3.

Additional details and impacted files

@@            Coverage Diff             @@
##               v3    #4874      +/-   ##
==========================================
- Coverage   45.93%   45.90%   -0.04%     
==========================================
  Files         364      364              
  Lines       37880    37880              
==========================================
- Hits        17399    17387      -12     
- Misses      18805    18817      +12     
  Partials     1676     1676              

Flag	Coverage Δ
admin	17.82% <ø> (ø)
agent	53.40% <ø> (-0.13%)	⬇️
managed	46.57% <ø> (ø)
vmproxy	72.09% <ø> (ø)

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