chore: update spring-boot to 3.2.9

[vaadin-bot]

No description provided.

[sonarcloud]

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

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.21%. Comparing base (d56c9ce) to head (49ef689).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2673   +/-   ##
=======================================
  Coverage   92.21%   92.21%           
=======================================
  Files          76       76           
  Lines        2466     2466           
  Branches      639      639           
=======================================
  Hits         2274     2274           
  Misses        144      144           
  Partials       48       48           

Flag	Coverage Δ
unittests	92.21% <ø> (ø)

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