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/RolloverAction.java
@Override
    public boolean isSafeAction() {
        return true;
    }
    @Override
    public List<Step> toSteps(Client client, String phase, Step.StepKey nextStepKey) {
        StepKey waitForRolloverReadyStepKey = new StepKey(phase, NAME, WaitForRolloverReadyStep.NAME);
        StepKey rolloverStepKey = new StepKey(phase, NAME, RolloverStep.NAME);
        StepKey waitForActiveShardsKey = new StepKey(phase, NAME, WaitForActiveShardsStep.NAME);
        StepKey updateDateStepKey = new StepKey(phase, NAME, UpdateRolloverLifecycleDateStep.NAME);
        StepKey setIndexingCompleteStepKey = new StepKey(phase, NAME, INDEXING_COMPLETE_STEP_NAME);
        WaitForRolloverReadyStep waitForRolloverReadyStep = new WaitForRolloverReadyStep(
            waitForRolloverReadyStepKey,
            rolloverStepKey,
            client,
            maxSize,
            maxPrimaryShardSize,
            maxAge,
            maxDocs,
            maxPrimaryShardDocs
        );
        RolloverStep rolloverStep = new RolloverStep(rolloverStepKey, waitForActiveShardsKey, client);
        WaitForActiveShardsStep waitForActiveShardsStep = new WaitForActiveShardsStep(waitForActiveShardsKey, updateDateStepKey);
        UpdateRolloverLifecycleDateStep updateDateStep = new UpdateRolloverLifecycleDateStep(
            updateDateStepKey,
            setIndexingCompleteStepKey,
            System::currentTimeMillis
        );
        UpdateSettingsStep setIndexingCompleteStep = new UpdateSettingsStep(
            setIndexingCompleteStepKey,