chore: unify management of group and version

build.gradle.kts

@@ -19,3 +19,10 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+
+val artefactVersion: String by project
+
+subprojects {
+    group = "com.onixbyte"
+    version = artefactVersion
+}