### 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/action/index/IndexRequest.java
if (op.equals("create")) {
            opType(OpType.CREATE);
        } else if (op.equals("index")) {
            opType(OpType.INDEX);
        } else {
            throw new IllegalArgumentException("opType must be 'create' or 'index', found: [" + opType + "]");
        }
        return this;
    }
    /**
     * Set to {@code true} to force this index to use {@link OpType#CREATE}.
     */
    public IndexRequest create(boolean create) {
        if (create) {
            return opType(OpType.CREATE);
        } else {
            return opType(OpType.INDEX);
        }
    }
    @Override
    public OpType opType() {
        return this.opType;
    }
    @Override
    public IndexRequest version(long version) {
        this.version = version;
        return this;
    }
    /**
     * Returns stored version. If currently stored version is {@link Versions#MATCH_ANY} and