build: Add repository reference to pom

Necessary for renovate to access internal dependencies from package registry

pom.xml

@@ -14,6 +14,13 @@
     <version>1.1.11-SNAPSHOT</version>
     <packaging>jar</packaging>
 
+    <repositories>
+        <repository>
+            <id>gitlab-maven</id>
+            <url>https://gitlab.nibio.no/api/v4/projects/401/packages/maven</url>
+        </repository>
+    </repositories>
+
     <dependencies>
         <dependency>
             <groupId>no.nibio.vips</groupId>