fix: detect changes with a + instead of two digits

Author: f-necas

pom.xml

@@ -679,7 +679,7 @@
                             <exportAntProperties>true</exportAntProperties>
                             <target>
                                 <condition property="project.packageVersion" value="${build.closest.tag.name}.${maven.build.timestamp}~${build.commit.id.abbrev}" else="99.master.${maven.build.timestamp}~${build.commit.id.abbrev}">
-                                <matches string="${build.branch}" pattern="\d{2}\.\d\.x$" />
+                                <matches string="${build.branch}" pattern="\d+\.\d\.x$" />
                               </condition>
                             </target>
                           </configuration>