Fix Spark 3.x test configurations (#1814)

Author: jbaiera

spark/core/build.gradle

@@ -130,7 +130,7 @@ sparkVariants {
 
 // deal with the messy conflicts out there
 // Ignore the scalaCompilerPlugin configurations since it is immediately resolved to configure the scala compiler tasks
-configurations.matching{ it.name.contains('CompilerPlugin') == false }.all { Configuration conf ->
+configurations.matching{ it.name.contains('CompilerPlugin') == false && (it.name.contains("spark30") || it.name.contains("Spark30")) == false}.all { Configuration conf ->
     conf.resolutionStrategy {
         eachDependency { details ->
             // change all javax.servlet artifacts to the one used by Spark otherwise these will lead to