[DOC] Update CCS version matrix (#91371)

* [DOC] Update CCS version matrix

* Add two extra columns to table definition

Co-authored-by: Abdon Pijpelink <abdon.pijpelink@elastic.co>

docs/reference/search/search-your-data/ccs-version-compat-matrix.asciidoc

@@ -1,13 +1,15 @@
-[cols="^,^,^,^,^,^,^,^"]
+[cols="^,^,^,^,^,^,^,^,^,^"]
 |====
-| 7+^h| Remote cluster version
+| 9+^h| Remote cluster version
 h| Local cluster version
-            |  6.8        | 7.1–7.16   | 7.17       | 8.0        | 8.1        | 8.2        | 8.3
-| 6.8       |  {yes-icon} | {yes-icon} | {yes-icon} | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}
-| 7.1–7.16  |  {yes-icon} | {yes-icon} | {yes-icon} | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}
-| 7.17      |  {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}
-| 8.0       |  {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}
-| 8.1       |  {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}
-| 8.2       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon}
-| 8.3       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon} | {yes-icon} | {yes-icon}
+            |  6.8        | 7.1–7.16   | 7.17       | 8.0        | 8.1        | 8.2        | 8.3       | 8.4       | 8.5
+| 6.8       |  {yes-icon} | {yes-icon} | {yes-icon} | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon} | {no-icon} | {no-icon}
+| 7.1–7.16  |  {yes-icon} | {yes-icon} | {yes-icon} | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon} | {no-icon} | {no-icon}
+| 7.17      |  {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}| {yes-icon}| {yes-icon}
+| 8.0       |  {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}| {yes-icon}| {yes-icon}
+| 8.1       |  {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon} | {yes-icon}| {yes-icon}| {yes-icon}
+| 8.2       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon} | {yes-icon}| {yes-icon}| {yes-icon}
+| 8.3       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} | {yes-icon}|{yes-icon} | {yes-icon}
+| 8.4       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {yes-icon} |{yes-icon}| {yes-icon}
+| 8.5       |  {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  | {no-icon}  |{yes-icon}| {yes-icon}
 |====