Add OPENAM-14062 to list of key fixes for 6.0.0.7

It has recently been highlighted that the fix for OPENAM-14062 has been included in the 6.0.0.7 release, but was not updated with the fix version value to reflect this - meaning it was also missing from the list of key fixes in the release notes.

Now that the fix version has been updated for this bug we should probably also add it to the list of key fixes for the 6.0.0.7 AM patch bundle release.