Neptune DXP - Open Edition Patch 15

Enhancement: We updated the OpenUI5 version CDN references to 1.108.34, 1.96.31, 1.84.46, and 1.71.66

Fix: Added environment variable for PostgreSQL pool size (already available from UI)

Fix: Finding groups for user login could fail during the LDAP login process, if the user ID was not set and user object was set to undefined