Update dependency com.diffplug.spotless:spotless-plugin-gradle to v6.25.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.diffplug.spotless:spotless-plugin-gradle	6.4.1 -> 6.25.0

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Configuration

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🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: conventions/build.gradle.kts

Command failed: ./gradlew --console=plain --dependency-verification lenient -q :dependencies :annotations:dependencies :cli:dependencies :compiler:dependencies :gradle-plugin:dependencies --update-locks com.diffplug.spotless:spotless-plugin-gradle

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'asmble'.
> Could not determine the dependencies of task ':conventions:compileJava'.
   > Could not resolve all task dependencies for configuration ':conventions:compileClasspath'.
      > Could not resolve com.diffplug.spotless:spotless-plugin-gradle:6.25.0.
        Required by:
            project :conventions
         > No matching variant of com.diffplug.spotless:spotless-plugin-gradle:6.25.0 was found. The consumer was configured to find an API of a library compatible with Java 8, preferably in the form of class files, preferably optimized for standard JVMs, and its dependencies declared externally, as well as attribute 'org.jetbrains.kotlin.platform.type' with value 'jvm' but:
             - Variant 'apiElements' capability com.diffplug.spotless:spotless-plugin-gradle:6.25.0 declares an API of a library, packaged as a jar, and its dependencies declared externally:
                 - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8
                 - Other compatible attributes:
                     - Doesn't say anything about its target Java environment (preferred optimized for standard JVMs)
                     - Doesn't say anything about org.jetbrains.kotlin.platform.type (required 'jvm')
             - Variant 'javadocElements' capability com.diffplug.spotless:spotless-plugin-gradle:6.25.0 declares a runtime of a component, and its dependencies declared externally:
                 - Incompatible because this component declares documentation and the consumer needed a library
                 - Other compatible attributes:
                     - Doesn't say anything about its target Java environment (preferred optimized for standard JVMs)
                     - Doesn't say anything about its target Java version (required compatibility with Java 8)
                     - Doesn't say anything about its elements (required them preferably in the form of class files)
                     - Doesn't say anything about org.jetbrains.kotlin.platform.type (required 'jvm')
             - Variant 'runtimeElements' capability com.diffplug.spotless:spotless-plugin-gradle:6.25.0 declares a runtime of a library, packaged as a jar, and its dependencies declared externally:
                 - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8
                 - Other compatible attributes:
                     - Doesn't say anything about its target Java environment (preferred optimized for standard JVMs)
                     - Doesn't say anything about org.jetbrains.kotlin.platform.type (required 'jvm')
             - Variant 'sourcesElements' capability com.diffplug.spotless:spotless-plugin-gradle:6.25.0 declares a runtime of a component, and its dependencies declared externally:
                 - Incompatible because this component declares documentation and the consumer needed a library
                 - Other compatible attributes:
                     - Doesn't say anything about its target Java environment (preferred optimized for standard JVMs)
                     - Doesn't say anything about its target Java version (required compatibility with Java 8)
                     - Doesn't say anything about its elements (required them preferably in the form of class files)
                     - Doesn't say anything about org.jetbrains.kotlin.platform.type (required 'jvm')

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 43s