Update dependency com.diffplug.spotless:spotless-maven-plugin from v2.39.0 to v2.40.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.diffplug.spotless:spotless-maven-plugin	2.39.0 -> 2.40.0

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Release Notes

diffplug/spotless (com.diffplug.spotless:spotless-maven-plugin)

v2.40.0

Added

• Added support for Protobuf formatting based on Buf. (#​1208)
• enum OnMatch { INCLUDE, EXCLUDE } so that FormatterStep.filterByContent can not only include based on the pattern but also exclude. (#​1749)

Fixed

• Update documented default semanticSort to false. (#​1728)

Changes

• Bump default cleanthat version to latest 2.13 -> 2.17. (#​1734)
• Bump default ktlint version to latest 0.49.1 -> 0.50.0. (#​1741)
  • Dropped support for ktlint 0.47.x following our policy of supporting two breaking changes at a time.
  • Dropped support for deprecated useExperimental parameter in favor of the ktlint_experimental property.

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