chore(deps): update dependency com.diffplug.spotless to v8.9.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.diffplug.spotless	8.8.0 → 8.9.0

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #109   +/-   ##
=======================================
  Coverage        ?   90.13%           
  Complexity      ?       40           
=======================================
  Files           ?       12           
  Lines           ?      223           
  Branches        ?       38           
=======================================
  Hits            ?      201           
  Misses          ?        4           
  Partials        ?       18           

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