Merge pull request 'Update dependency org.codehaus.mojo:buildnumber-maven-plugin to v3' (#4) from renovate/org.codehaus.mojo-buildnumber-maven-plugin-3.x into main

Reviewed-on: #4

pom.xml

@@ -27,7 +27,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>buildnumber-maven-plugin</artifactId>
-                <version>1.1</version>
+                <version>3.2.1</version>
                 <executions>
                     <execution>
                         <id>buildnumber</id>

renovate.json

@@ -0,0 +1,3 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+}