Fix version compatibility statement (#1537) (#1553)

(cherry picked from commit 156f83e)

Co-authored-by: David Kilfoyle <[email protected]>

Author: mergify[bot]

docs/en/ingest-management/fleet/add-fleet-server-cloud.asciidoc

@@ -30,8 +30,7 @@ image::images/fleet-server-cloud-deployment.png[{fleet-server} Cloud deployment
 {fleet-server} is compatible with the following Elastic products:
 
 * {stack} 7.13 or later.
-** For version compatibility: {es} >= {fleet-server} >= {agent} (except for
-bugfix releases)
+** For version compatibility, {es} must be at the same or a later version than {fleet-server}, and {fleet-server} needs to be at the same or a later version than {agent} (not including patch releases).
 ** {kib} should be on the same minor version as {es}.
 
 * {ece} 2.10 or later

docs/en/ingest-management/fleet/add-fleet-server-mixed.asciidoc

@@ -33,8 +33,7 @@ you need to:
 {fleet-server} is compatible with the following Elastic products:
 
 * {stack} 7.13 or later
-** For version compatibility: {es} >= {fleet-server} >= {agent} (except for
-bugfix releases)
+** For version compatibility, {es} must be at the same or a later version than {fleet-server}, and {fleet-server} needs to be at the same or a later version than {agent} (not including patch releases).
 ** {kib} should be on the same minor version as {es}
 
 * {ece} 2.9 or later--allows you to use a hosted {fleet-server} on {ecloud}.

docs/en/ingest-management/fleet/add-fleet-server-on-prem.asciidoc

@@ -39,8 +39,7 @@ containerized {fleet-server}.
 {fleet-server} is compatible with the following Elastic products:
 
 * {stack} 7.13 or later.
-** For version compatibility: {es} >= {fleet-server} >= {agent} (except for
-bugfix releases)
+** For version compatibility, {es} must be at the same or a later version than {fleet-server}, and {fleet-server} needs to be at the same or a later version than {agent} (not including patch releases).
 ** {kib} should be on the same minor version as {es}.
 
 * {ece} 2.9 or later