Merge pull request #292 from ByteInternet/remove_opensearch_2x_reference

docs: applications/akeneo: Remove reference to OpenSearch 2.x

Author: tdgroot

docs/ecommerce-applications/akeneo/how-to-install-akeneo-7-on-hypernode.md

@@ -82,13 +82,10 @@ hypernode-systemctl settings php_version 8.1
 hypernode-systemctl settings php_apcu_enabled True
 ```
 
-## Configure and Enable OpenSearch v2.x
-
-```bash
-hypernode-systemctl settings opensearch_version 2.x
-```
+## Configure and Enable OpenSearch v2.6
 
 ```bash
+hypernode-systemctl settings opensearch_version 2.6
 hypernode-systemctl settings opensearch_enabled True
 ```