revert group id

Author: l-trotta

build.gradle.kts

@@ -18,7 +18,7 @@
  */
 
 allprojects {
-    group = "co.elastic"
+    group = "co.elastic.clients"
     // Release manager provides a $VERSION. If not present, it's a local or CI snapshot build.
     // also need to add the qualifier in case it's a staging build
     version = ""