### Description

This is a followup to #85926.

As part of the ingest processing pipeline, we call `CollectionUtils.ensureNoSelfReferences(...)` to ensure that a script processor didn't accidentally introduce a circular object. However, this check is only necessary if we know there was the potential for a circular option, which can only happen with either a custom processor (a plugin where we have no control), or a script processor. We should be able to only call this sanity check if we know we need it, rather than for every document.
server/src/main/java/org/elasticsearch/ingest/IngestService.java
if (type.equals(oldType)) {
                                metric.add(oldMetric);
                            }
                        }
                    }
                }
            } catch (ElasticsearchParseException e) {
                Pipeline pipeline = substitutePipeline(newConfiguration.getId(), e);
                newPipelines.put(newConfiguration.getId(), new PipelineHolder(newConfiguration, pipeline));
                if (exceptions == null) {
                    exceptions = new ArrayList<>();
                }
                exceptions.add(e);
            } catch (Exception e) {
                ElasticsearchParseException parseException = new ElasticsearchParseException(
                    "Error updating pipeline with id [" + newConfiguration.getId() + "]",
                    e
                );
                Pipeline pipeline = substitutePipeline(newConfiguration.getId(), parseException);
                newPipelines.put(newConfiguration.getId(), new PipelineHolder(newConfiguration, pipeline));
                if (exceptions == null) {
                    exceptions = new ArrayList<>();
                }
                exceptions.add(parseException);
            }
        }
        
        
        for (Map.Entry<String, PipelineHolder> entry : existingPipelines.entrySet()) {
            if (newIngestMetadata.getPipelines().get(entry.getKey()) == null) {