Build: Spotless plugin failure due to "too many variants"

[snazy]

The (innocent) PR #4649 unveiled that the Spotless plugin (since 6.6.1 up to most recent version 6.8.0) has not fixed diffplug/spotless#1215 yet. The same issue happened in cel-java projectnessie/cel-java#185.

There's currently no fix available, just a workaround to run spotless related tasks separately from tasks that build code (which includes checkstyle).

$ ./gradlew check
Configuration on demand is an incubating feature.

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':nessie-versioned-spi:intTest'.
> Could not resolve all task dependencies for configuration ':nessie-versioned-spi:testRuntimeClasspath'.
   > Could not resolve project :.
     Required by:
         project :nessie-versioned-spi
      > The consumer was configured to find a runtime of a platform compatible with Java 8, packaged as a jar, preferably optimized for standard JVMs, and its dependencies declared externally. However we cannot choose between the following variants of project ::
          - runtimeElements
          - spotless1316845952
          - spotless617803313
        All of them match the consumer attributes:
          - Variant 'runtimeElements' capability org.projectnessie:nessie:0.30.1-SNAPSHOT declares a runtime of a platform:
              - Unmatched attributes:
                  - Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
                  - 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 packaged as a jar)
          - Variant 'spotless1316845952' capability org.projectnessie:nessie:0.30.1-SNAPSHOT declares a component, and its dependencies declared externally:
              - Unmatched attributes:
                  - Doesn't say anything about its component category (required a platform)
                  - 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 packaged as a jar)
                  - Doesn't say anything about its usage (required a runtime)
          - Variant 'spotless617803313' capability org.projectnessie:nessie:0.30.1-SNAPSHOT declares a component, and its dependencies declared externally:
              - Unmatched attributes:
                  - Doesn't say anything about its component category (required a platform)
                  - 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 packaged as a jar)
                  - Doesn't say anything about its usage (required a runtime)
        The following variants were also considered but didn't match the requested attributes:
          - Variant 'apiElements' capability org.projectnessie:nessie:0.30.1-SNAPSHOT declares a platform:
              - Incompatible because this component declares an API of a component and the consumer needed a runtime of a component
              - Other compatible attributes:
                  - Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
                  - 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 packaged as a jar)
          - Variant 'enforcedApiElements' capability org.projectnessie:nessie-derived-enforced-platform:0.30.1-SNAPSHOT:
              - Incompatible because this component declares an API of an enforced platform and the consumer needed a runtime of a platform
              - Other compatible attributes:
                  - Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
                  - 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 packaged as a jar)
          - Variant 'enforcedRuntimeElements' capability org.projectnessie:nessie-derived-enforced-platform:0.30.1-SNAPSHOT declares a runtime of a component:
              - Incompatible because this component declares an enforced platform and the consumer needed a platform
              - Other compatible attributes:
                  - Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
                  - 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 packaged as a jar)

* 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 7s
12 actionable tasks: 12 up-to-date