code: public static String fabric8ArchetypesVersion() {
          String version = System.getenv(ENV_FABRIC8_ARCHETYPES_VERSION);
          if (Strings.isNotBlank(version)) {
              return version;
          }
          return MavenHelpers.getVersion("io.fabric8.archetypes", "archetypes-catalog");
      }
docs: Returns the version to use for the fabric8 archetypes