Update supported-neo4j-versions.adoc

Author: IoannisPanagiotas

doc/modules/ROOT/pages/installation/supported-neo4j-versions.adoc

@@ -10,6 +10,7 @@ If your version of GDS or Neo4j is not listed in the matrix, you should upgrade.
 [opts=header]
 |===
 | Neo4j version    | Neo4j Graph Data Science
+| `2025.06`        | `2.19`
 | `2025.05`        | `2.18`
 | `2025.04`        | `2.17`
 | `2025.03`        | `2.16`