PMM-14350 Upgrade grafana plugins

[ademidoff]

PMM-14350

This PR fixes an issue where Ansible's synchronize module doesn't copy all of the files, skipping .png images, which ultimately makes the Grafana plugins unusable.

Link to the Feature Build: SUBMODULES-4048

• PMM-14350 Upgrade Grafana plugins grafana-dashboards#1721

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 44.95%. Comparing base (f0e0645) to head (7957b90).

Additional details and impacted files

@@              Coverage Diff              @@
##           pmm-3.4.1    #4591      +/-   ##
=============================================
- Coverage      44.98%   44.95%   -0.04%     
=============================================
  Files            356      356              
  Lines          44809    44809              
=============================================
- Hits           20157    20143      -14     
- Misses         22999    23013      +14     
  Partials        1653     1653              

Flag	Coverage Δ
admin	17.48% <ø> (ø)
agent	53.18% <ø> (-0.13%)	⬇️
managed	44.99% <ø> (ø)
vmproxy	73.45% <ø> (ø)

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