Fix schema url and test, now that we proved it works

Author: jsuereth

sdk-extensions/incubator/src/main/java/io/opentelemetry/sdk/extension/incubator/entities/detectors/TelemetrySdkDetector.java

@@ -20,7 +20,7 @@
  * entity</a>
  */
 public class TelemetrySdkDetector implements EntityDetector {
-  private static final String SCHEMA_URL = "https://opentelemetry.io/schemas/1.28.0";
+  private static final String SCHEMA_URL = "https://opentelemetry.io/schemas/1.34.0";
   private static final String ENTITY_TYPE = "telemetry.sdk";
   private static final AttributeKey<String> TELEMETRY_SDK_LANGUAGE =
       AttributeKey.stringKey("telemetry.sdk.language");

sdk-extensions/incubator/src/test/java/io/opentelemetry/sdk/extension/incubator/entities/TestEntityProvider.java

@@ -23,7 +23,7 @@ void defaults_includeServiceAndSdk() {
         .containsKey("telemetry.sdk.name")
         .containsKey("telemetry.sdk.version");
     assertThat(provider.getResource().getSchemaUrl())
-        .isEqualTo("https://opentelemetry.io/schemas/1.28.0");
+        .isEqualTo("https://opentelemetry.io/schemas/1.34.0");
 
     assertThat(EntityUtil.getEntities(provider.getResource()))
         .satisfiesExactlyInAnyOrder(