chore(release): bump version to 2.15.1

- Update project version from 2.15.0 to 2.15.1 in gradle.properties

Author: Ahoo-Wang

gradle.properties

@@ -15,7 +15,7 @@ org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 
 group=me.ahoo.cosid
-version=2.15.0
+version=2.15.1
 description=Universal, flexible, high-performance distributed ID generator.
 website=https://github.com/Ahoo-Wang/CosId
 issues=https://github.com/Ahoo-Wang/CosId/issues