Update gradle.properties

Author: mrmans0n

gradle.properties

@@ -11,7 +11,7 @@ systemProp.org.gradle.internal.http.socketTimeout=240000
 SONATYPE_HOST=DEFAULT
 RELEASE_SIGNING_ENABLED=true
 GROUP=io.nlopez.compose.rules
-VERSION_NAME=0.4.21-SNAPSHOT
+VERSION_NAME=0.4.21
 POM_DESCRIPTION=Jetpack Compose Rules
 POM_INCEPTION_YEAR=2022
 POM_URL=https://github.com/mrmans0n/compose-rules/