[merge when 4.6 docs are live]Update configuration-reference.adoc (circleci#8899)

* Update configuration-reference.adoc

version  key is not supported for setup_remote_docker on server. The default docker versions can be found in the default aws ami list. 

This PR was opened to link customers their in hopes of self serve.

* Update configuration-reference.adoc

* Update jekyll/_cci2/configuration-reference.adoc

* update link

---------

Co-authored-by: Rosie Yohannan <[email protected]>

Author: HennaAbbas

jekyll/_cci2/configuration-reference.adoc

@@ -1846,7 +1846,7 @@ jobs:
 [NOTE]
 ====
 * `setup_remote_docker` is not compatible with the `machine` executor. See xref:docker-layer-caching#machine-executor[Docker Layer Caching in Machine Executor] for information on how to enable DLC with the `machine` executor.
-* The `version` key is not currently supported on CircleCI server. Contact your system administrator for information about the Docker version installed in your remote Docker environment.
+* The `version` key is not currently supported on CircleCI server. Contact your system administrator for information about the Docker version installed in your remote Docker environment. If you are on server 4.x, you can find the default AWS AMI xref:server/latest/operator/manage-virtual-machines-with-machine-provisioner/#x86-ami-list[here].
 ====
 
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