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/test/java/org/elasticsearch/xpack/core/ilm/WaitForRolloverReadyStepTests.java
verify(indicesClient, Mockito.only()).rolloverIndex(Mockito.any(), Mockito.any());
    }
    public void testPerformActionFailure() {
        String alias = randomAlphaOfLength(5);
        IndexMetadata indexMetadata = IndexMetadata.builder(randomAlphaOfLength(10))
            .putAlias(AliasMetadata.builder(alias))
            .settings(settings(Version.CURRENT).put(RolloverAction.LIFECYCLE_ROLLOVER_ALIAS, alias))
            .numberOfShards(randomIntBetween(1, 5))
            .numberOfReplicas(randomIntBetween(0, 5))
            .build();
        Exception exception = new RuntimeException();
        WaitForRolloverReadyStep step = createRandomInstance();
        Mockito.doAnswer(invocation -> {
            RolloverRequest request = (RolloverRequest) invocation.getArguments()[0];
            @SuppressWarnings("unchecked")
            ActionListener<RolloverResponse> listener = (ActionListener<RolloverResponse>) invocation.getArguments()[1];
            Set<Condition<?>> expectedConditions = new HashSet<>();
            if (step.getMaxSize() != null) {
                expectedConditions.add(new MaxSizeCondition(step.getMaxSize()));
            }
            if (step.getMaxPrimaryShardSize() != null) {
                expectedConditions.add(new MaxPrimaryShardSizeCondition(step.getMaxPrimaryShardSize()));
            }
            if (step.getMaxAge() != null) {
                expectedConditions.add(new MaxAgeCondition(step.getMaxAge()));
            }
            if (step.getMaxDocs() != null) {
                expectedConditions.add(new MaxDocsCondition(step.getMaxDocs()));
            }
            if (step.getMaxPrimaryShardDocs() != null) {