[Issue]: Incorrect CCS version support info

[quux00]

Type of issue

Inaccurate

What documentation page is affected

https://www.elastic.co/docs/solutions/search/cross-cluster-search#ccs-supported-configurations

What happened?

The above document (specifically the support grid) around CCS version support contradicts this other document, which has the correct support grid.

In particular, what is incorrect in https://www.elastic.co/docs/solutions/search/cross-cluster-search#ccs-supported-configurations is that it states that an 8.18 local cluster can query a 7.last (7.17) cluster. CCS only supports "previous minor". So the only 8.x version that supports 7.17 is 8.0.

Note that the grid with the error does accurately show that 9.0 local can query 8.18, which is the "8.last" associated with 9.0, so the 8.0<->7.17 pairing neesd to show the same thing.

We have gotten a query from a customer who was confused by the contradictory docs, so this should fixed ASAP.

Additional info

No response