docs(supported-systems): add note about arch requiring OpenSSL 1.1 installed

re #750

Author: hasezoey

docs/guides/supported-systems.md

@@ -149,6 +149,9 @@ Currently Mapping to: `ubuntu2004`
 :::note
 Because Arch* dosnt base on ubuntu, there is no specific ubuntu version associated with an arch version, so it defaults to highest supported `ubuntu` version
 :::
+:::note
+MongoDB Binary versions before `6.0.4` require OpenSSL 1.1 installed, on arch can be installed via `core/openssl-1.1`.
+:::
 
 ### Gentoo