Update Operator reference in query-plan-eager. (#1209)

This Unknown Operator reference was fixed last year but we forgot to
update the documentation.

---------

Co-authored-by: Jens Pryce-Åklundh <[email protected]>

Author: Dunfluff

modules/ROOT/pages/planning-and-tuning/operators/operators-detail.adoc

@@ -6446,9 +6446,9 @@ Batch size 128
 | |                   +----+------------------------------------------------------------------------------------------------+----------------+------+---------+----------------+                        |           |                     |
 | +DetachDelete       |  7 | a                                                                                              |              0 |    1 |       5 |                |                        |           |                     |
 | |                   +----+------------------------------------------------------------------------------------------------+----------------+------+---------+----------------+                        |           |                     |
-| +Eager              |  8 | read/delete conflict for variable: b (Operator: 6 vs 10, and 1 more conflicting operators),    |              0 |    1 |       0 |            360 |                    1/0 |     0.226 | Fused in Pipeline 1 |
-| |                   |    | read/set conflict for label: Person (Operator: 3 vs 10),                                       |                |      |         |                |                        |           |                     |
-| |                   |    | read/set conflict for property: name (Operator: 3 vs 10)                                       |                |      |         |                |                        |           |                     |
+| +Eager              |  8 | read/delete conflict for variable: b (Operator: 6 vs 9, and 1 more conflicting operators),     |              0 |    1 |       0 |            360 |                    1/0 |     0.226 | Fused in Pipeline 1 |
+| |                   |    | read/set conflict for label: Person (Operator: 3 vs 9),                                        |                |      |         |                |                        |           |                     |
+| |                   |    | read/set conflict for property: name (Operator: 3 vs 9)                                        |                |      |         |                |                        |           |                     |
 | |                   +----+------------------------------------------------------------------------------------------------+----------------+------+---------+----------------+------------------------+-----------+---------------------+
 | +MultiNodeIndexSeek |  9 | RANGE INDEX a:Person(name) WHERE name = $autostring_0,                                         |              0 |    1 |       4 |            376 |                    2/0 |     0.218 | In Pipeline 0       |
 |                     |    | RANGE INDEX b:Person(name) WHERE name = $autostring_1                                          |                |      |         |                |                        |           |                     |