Refine regex

See gh-22543

Author: philwebb

ci/images/releasescripts/src/main/resources/application.properties

@@ -1,4 +1,4 @@
 spring.main.banner-mode=off
 distribute.optional-deployments[0]=.*\\.zip
-distribute.optional-deployments[1]=spring-boot-project-\\d\\.\\d\\.\\d(?:\\.RELEASE)?\\.pom
+distribute.optional-deployments[1]=spring-boot-project-\\d+\\.\\d+\\.\\d+(?:\\.RELEASE)?\\.pom
 logging.level.io.spring.concourse=DEBUG