feat(v1beta2): remove DOCKER/FLINK enums from Component, add fields to ClusterConfig, InstanceGroupConfig, WorkflowTemplate, WorkflowMetadata (#411)

Breaking changes:
1. The `DOCKER` and `FLINK` values have been removed from the `Component` enum, and an `HBASE` value was added.

Other changes:

1. There is a new `temp_bucket` field in `ClusterConfig`.
2. There is a new `preemptibility` field in `InstanceGroupConfig`.
3. The `project_id` field of `JobReference` is now optional instead of required.
4. There is a new `dag_timeout` field in `WorkflowTemplate`.
5. There are new `dag_timeout`, `dag_start_time`, and `dag_end_time` fields in `WorkflowMetadata`.
6. There are various updates to the doc comments.

PiperOrigin-RevId: 347036369
Source-Link: googleapis/googleapis@6d65640
PiperOrigin-RevId: 347029491
Source-Link: googleapis/googleapis@bddb3d7
PiperOrigin-RevId: 346372957
Source-Link: googleapis/googleapis@857f70d
PiperOrigin-RevId: 346132878
Source-Link: googleapis/googleapis@565b9a5
PiperOrigin-RevId: 345127100
Source-Link: googleapis/googleapis@269083b

Author: yoshi-automation

google-cloud-dataproc/src/main/java/com/google/cloud/dataproc/v1/AutoscalingPolicyServiceClient.java

@@ -5,14 +5,15 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *     https://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package com.google.cloud.dataproc.v1;
 
 import static com.google.cloud.dataproc.v1.AutoscalingPolicyServiceClient.ListAutoscalingPoliciesPagedResponse;
@@ -34,7 +35,7 @@
 import java.util.List;
 import javax.annotation.Generated;
 
-// AUTO-GENERATED DOCUMENTATION AND CLASS
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
  * Settings class to configure an instance of {@link AutoscalingPolicyServiceClient}.
  *
@@ -51,24 +52,26 @@
  *
  * <p>For example, to set the total timeout of createAutoscalingPolicy to 30 seconds:
  *
- * <pre>
- * <code>
+ * <pre>{@code
  * AutoscalingPolicyServiceSettings.Builder autoscalingPolicyServiceSettingsBuilder =
  *     AutoscalingPolicyServiceSettings.newBuilder();
  * autoscalingPolicyServiceSettingsBuilder
  *     .createAutoscalingPolicySettings()
  *     .setRetrySettings(
- *         autoscalingPolicyServiceSettingsBuilder.createAutoscalingPolicySettings().getRetrySettings().toBuilder()
+ *         autoscalingPolicyServiceSettingsBuilder
+ *             .createAutoscalingPolicySettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
- * AutoscalingPolicyServiceSettings autoscalingPolicyServiceSettings = autoscalingPolicyServiceSettingsBuilder.build();
- * </code>
- * </pre>
+ * AutoscalingPolicyServiceSettings autoscalingPolicyServiceSettings =
+ *     autoscalingPolicyServiceSettingsBuilder.build();
+ * }</pre>
  */
-@Generated("by gapic-generator")
-@BetaApi
+@Generated("by gapic-generator-java")
 public class AutoscalingPolicyServiceSettings
     extends ClientSettings<AutoscalingPolicyServiceSettings> {
+
   /** Returns the object with the settings used for calls to createAutoscalingPolicy. */
   public UnaryCallSettings<CreateAutoscalingPolicyRequest, AutoscalingPolicy>
       createAutoscalingPolicySettings() {
@@ -168,18 +171,15 @@ protected AutoscalingPolicyServiceSettings(Builder settingsBuilder) throws IOExc
   /** Builder for AutoscalingPolicyServiceSettings. */
   public static class Builder
       extends ClientSettings.Builder<AutoscalingPolicyServiceSettings, Builder> {
+
     protected Builder() throws IOException {
-      this((ClientContext) null);
+      this(((ClientContext) null));
     }
 
     protected Builder(ClientContext clientContext) {
       super(AutoscalingPolicyServiceStubSettings.newBuilder(clientContext));
     }
 
-    private static Builder createDefault() {
-      return new Builder(AutoscalingPolicyServiceStubSettings.newBuilder());
-    }
-
     protected Builder(AutoscalingPolicyServiceSettings settings) {
       super(settings.getStubSettings().toBuilder());
     }
@@ -188,11 +188,15 @@ protected Builder(AutoscalingPolicyServiceStubSettings.Builder stubSettings) {
       super(stubSettings);
     }
 
+    private static Builder createDefault() {
+      return new Builder(AutoscalingPolicyServiceStubSettings.newBuilder());
+    }
+
     public AutoscalingPolicyServiceStubSettings.Builder getStubSettingsBuilder() {
       return ((AutoscalingPolicyServiceStubSettings.Builder) getStubSettings());
     }
 
-    // NEXT_MAJOR_VER: remove 'throws Exception'
+    // NEXT_MAJOR_VER: remove 'throws Exception'.
     /**
      * Applies the given settings updater function to all of the unary API methods in this service.
      *