Revert "Fix gitlab reference"

This reverts commit f06d209e

build.gradle

@@ -94,7 +94,7 @@ publishing {
             pom {
                 name = 'Normalization Service Configuration'
                 description = "This library contains the parsers and validators for the normalization service configurations."
-                url = "https://gitlab.switch.ch/api/v4/projects/package-registry/packages/maven"
+                url = "https://gitlab.example.com/api/v4/projects/package-registry/packages/maven"
                 licenses {
                     license {
                         name = 'The Apache License, Version 2.0'