feat: [cloudbuild] add update_mask to UpdateBuildTriggerRequest proto (#9704)

* feat: Add automap_substitutions flag to use substitutions as envs in Cloud Build

PiperOrigin-RevId: 551218480

Source-Link: googleapis/googleapis@f823915

Source-Link: https://github.com/googleapis/googleapis-gen/commit/5979eecd8d2b0fc158fe7152a4da43ced2929780
Copy-Tag: eyJwIjoiamF2YS1jbG91ZGJ1aWxkLy5Pd2xCb3QueWFtbCIsImgiOiI1OTc5ZWVjZDhkMmIwZmMxNThmZTcxNTJhNGRhNDNjZWQyOTI5NzgwIn0=

* 🦉 Updates from OwlBot post-processor

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

* feat: add update_mask to UpdateBuildTriggerRequest proto

PiperOrigin-RevId: 552479161

Source-Link: googleapis/googleapis@f8415bd

Source-Link: https://github.com/googleapis/googleapis-gen/commit/4ac7667c7dea38738d9e2176305a804de2258be1
Copy-Tag: eyJwIjoiamF2YS1jbG91ZGJ1aWxkLy5Pd2xCb3QueWFtbCIsImgiOiI0YWM3NjY3YzdkZWEzODczOGQ5ZTIxNzYzMDVhODA0ZGUyMjU4YmUxIn0=

* 🦉 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>

Author: gcf-owl-bot[bot]

java-cloudbuild/README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>26.19.0</version>
+      <version>26.20.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>
@@ -195,7 +195,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/google-cloud-java/java11.html
 [stability-image]: https://img.shields.io/badge/stability-stable-green
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-build.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-build/3.23.0
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-build/3.24.0
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles

java-cloudbuild/google-cloud-build/src/main/java/com/google/cloud/devtools/cloudbuild/v1/CloudBuildClient.java

@@ -1574,6 +1574,7 @@ public final BuildTrigger updateBuildTrigger(
    *           .setProjectId("projectId-894832108")
    *           .setTriggerId("triggerId-648752909")
    *           .setTrigger(BuildTrigger.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
    *           .build();
    *   BuildTrigger response = cloudBuildClient.updateBuildTrigger(request);
    * }
@@ -1606,6 +1607,7 @@ public final BuildTrigger updateBuildTrigger(UpdateBuildTriggerRequest request)
    *           .setProjectId("projectId-894832108")
    *           .setTriggerId("triggerId-648752909")
    *           .setTrigger(BuildTrigger.newBuilder().build())
+   *           .setUpdateMask(FieldMask.newBuilder().build())
    *           .build();
    *   ApiFuture<BuildTrigger> future =
    *       cloudBuildClient.updateBuildTriggerCallable().futureCall(request);

java-cloudbuild/google-cloud-build/src/main/java/com/google/cloud/devtools/cloudbuild/v1/stub/HttpJsonCloudBuildStub.java

@@ -535,6 +535,7 @@ public class HttpJsonCloudBuildStub extends CloudBuildStub {
                             Map<String, List<String>> fields = new HashMap<>();
                             ProtoRestSerializer<UpdateBuildTriggerRequest> serializer =
                                 ProtoRestSerializer.create();
+                            serializer.putQueryParam(fields, "updateMask", request.getUpdateMask());
                             serializer.putQueryParam(fields, "$alt", "json;enum-encoding=int");
                             return fields;
                           })