The following ILM tests all contain switch statements with branches that will never execute. The tests use a `between(x, y)` switch expression, but there are `case` values that are outside the randomised range. We need to fix these before #88739 can be merged. By "fix", I mean either remove the spurious cases, or if we actually want them, then extend the randomized range.

   * ActionConfigStatsTests
   * AllocateActionTests
   * CopyExecutionStateStepTests
   * RolloverActionTests
   * WaitForRolloverReadyStepTests

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ilm/IndexLifecycleFeatureSetUsage.java
private final Integer allocateNumberOfReplicas;
        private final Integer forceMergeMaxNumberOfSegments;
        private final TimeValue rolloverMaxAge;
        private final Long rolloverMaxDocs;
        private final Long rolloverMaxPrimaryShardDocs;
        private final ByteSizeValue rolloverMaxPrimaryShardSize;
        private final ByteSizeValue rolloverMaxSize;
        private final Integer setPriorityPriority;
        private final ByteSizeValue shrinkMaxPrimaryShardSize;
        private final Integer shrinkNumberOfShards;
        public static Builder builder() {
            return new Builder();
        }
        public static Builder builder(ActionConfigStats existing) {
            return new Builder(existing);
        }
        public static final class Builder {