feat: Adding support for databoost (#2505)

* feat: Adding support for databoost 

Enable databoost feature for all customers and removing the beta api annotation.

* Enabling databoost test

* Update ITBatchReadTest.java

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* docs fix

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Rajat Bhatta <93644539+rajatbhatta@users.noreply.github.com>

google-cloud-spanner/src/main/java/com/google/cloud/spanner/Options.java

@@ -16,7 +16,6 @@
 
 package com.google.cloud.spanner;
 
-import com.google.api.core.BetaApi;
 import com.google.common.base.Preconditions;
 import com.google.spanner.v1.RequestOptions.Priority;
 import java.io.Serializable;
@@ -156,11 +155,9 @@ public static ListOption pageSize(int pageSize) {
   }
 
   /**
-   * If this is for a partitioned read and query and this field is set to `true`, the request will
-   * be executed via Spanner independent compute resources. The method is available in Beta mode
-   * (and is not generally available now).
+   * If this is for PartitionedRead or PartitionedQuery and this field is set to `true`, the request
+   * will be executed via Spanner independent compute resources.
    */
-  @BetaApi
   public static DataBoostQueryOption dataBoostEnabled(Boolean dataBoostEnabled) {
     return new DataBoostQueryOption(dataBoostEnabled);
   }

google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITBatchReadTest.java

@@ -258,8 +258,6 @@ public void readUsingIndex() {
 
   @Test
   public void dataBoostRead() {
-    // TODO: Remove the following check during GA
-    assumeFalse("DataBoost feature is not yet generally available", true);
     assumeFalse("Emulator does not support data boost read", isUsingEmulator());
 
     BitSet seenRows = new BitSet(numRows);
@@ -314,8 +312,6 @@ private PartitionOptions getRandomPartitionOptions() {
 
   @Test
   public void dataBoostQuery() {
-    // TODO: Remove the following check during GA
-    assumeFalse("DataBoost feature is not yet generally available", true);
     assumeFalse("Emulator does not support data boost query", isUsingEmulator());
     BitSet seenRows = new BitSet(numRows);
     TimestampBound bound = getRandomBound();