Add repository configuration for consuming snapshot releases

This enables Maven to resolve snapshot dependencies from the Central Portal.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: oschwald

pom.xml

@@ -36,6 +36,19 @@
             <email>[email protected]</email>
         </developer>
     </developers>
+    <repositories>
+        <repository>
+            <name>Central Portal Snapshots</name>
+            <id>central-portal-snapshots</id>
+            <url>https://central.sonatype.com/repository/maven-snapshots/</url>
+            <releases>
+                <enabled>false</enabled>
+            </releases>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
     <dependencies>
         <dependency>
             <groupId>com.maxmind.db</groupId>