@Test void version_unsupported() {
    assertThatThrownBy(() -> storage.versionSpecificTemplates(V0_3))
      .hasMessage("OpenSearch versions 1-3.x are supported, was: 0.3");
  }
Unsupported, but we should test that parsing works
zipkin-storage/elasticsearch/src/test/java/zipkin2/elasticsearch/OpensearchSpecificTemplatesTest.java