Build(deps): Bump com.diffplug.spotless from 6.12.1 to 6.25.0

[dependabot[bot]]

Bumps com.diffplug.spotless from 6.12.1 to 6.25.0.

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[pan3793]

@dependabot rebase

[mzitnik]

Do we still want to support java 8?

[pan3793]

Do we still want to support java 8?

Java 8 is still being used widely, especially for the Hadoop-based big data ecosystem.