Update grafana/grafana Docker tag to v12.3.2

[renovate]

This PR contains the following updates:

Package	Update	Change
grafana/grafana	patch	12.3.1 → 12.3.2

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Release Notes

grafana/grafana (grafana/grafana)

v12.3.2

Compare Source

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Configuration

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.33%. Comparing base (31ce163) to head (06a64f2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #112   +/-   ##
=======================================
  Coverage   43.33%   43.33%           
=======================================
  Files          73       73           
  Lines        8382     8382           
=======================================
  Hits         3632     3632           
  Misses       4750     4750           

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