chore: regenerate chat client (googleapis#28107)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-java-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

clients/google-api-services-chat/v1/2.0.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-chat</artifactId>
-      <version>v1-rev20250619-2.0.0</version>
+      <version>v1-rev20250706-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20250619-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20250706-2.0.0'
 }
 ```
 

clients/google-api-services-chat/v1/2.0.0/com/google/api/services/chat/v1/model/DeprecatedEvent.java

@@ -23,7 +23,12 @@
  * interactions). In addition to receiving events from user interactions, Chat apps can receive
  * events about changes to spaces, such as when a new member is added to a space. To learn about
  * space events, see [Work with events from Google
- * Chat](https://developers.google.com/workspace/chat/events-overview).
+ * Chat](https://developers.google.com/workspace/chat/events-overview). Note: This event is only
+ * used for [Chat interaction events](https://developers.google.com/workspace/chat/receive-respond-
+ * interactions). If your Chat app is built as a [Google Workspace add-
+ * on](https://developers.google.com/workspace/add-ons/chat/build), see [Chat event
+ * objects](https://developers.google.com/workspace/add-ons/concepts/event-objects#chat-event-
+ * object) in the add-ons documentation.
  *
  * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
  * transmitted over HTTP when working with the Google Chat API. For a detailed explanation see:

clients/google-api-services-chat/v1/2.0.0/com/google/api/services/chat/v1/model/GoogleAppsCardV1SelectionInput.java

@@ -46,6 +46,15 @@ public final class GoogleAppsCardV1SelectionInput extends com.google.api.client.
   @com.google.api.client.util.Key
   private GoogleAppsCardV1Action externalDataSource;
 
+  /**
+   * Optional. Text that appears below the selection input field meant to assist users by prompting
+   * them to enter a certain value. This text is always visible. Only supported by Google Workspace
+   * Workflows, but not Google Chat API or Google Workspace Add-ons.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String hintText;
+
   /**
    * An array of selectable items. For example, an array of radio buttons or checkboxes. Supports up
    * to 100 items.
@@ -135,6 +144,27 @@ public GoogleAppsCardV1SelectionInput setExternalDataSource(GoogleAppsCardV1Acti
     return this;
   }
 
+  /**
+   * Optional. Text that appears below the selection input field meant to assist users by prompting
+   * them to enter a certain value. This text is always visible. Only supported by Google Workspace
+   * Workflows, but not Google Chat API or Google Workspace Add-ons.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getHintText() {
+    return hintText;
+  }
+
+  /**
+   * Optional. Text that appears below the selection input field meant to assist users by prompting
+   * them to enter a certain value. This text is always visible. Only supported by Google Workspace
+   * Workflows, but not Google Chat API or Google Workspace Add-ons.
+   * @param hintText hintText or {@code null} for none
+   */
+  public GoogleAppsCardV1SelectionInput setHintText(java.lang.String hintText) {
+    this.hintText = hintText;
+    return this;
+  }
+
   /**
    * An array of selectable items. For example, an array of radio buttons or checkboxes. Supports up
    * to 100 items.

clients/google-api-services-chat/v1/2.0.0/pom.xml

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-chat</artifactId>
-  <version>v1-rev20250619-2.0.0</version>
-  <name>Google Chat API v1-rev20250619-2.0.0</name>
+  <version>v1-rev20250706-2.0.0</version>
+  <name>Google Chat API v1-rev20250706-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>

clients/google-api-services-chat/v1/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-chat</artifactId>
-      <version>v1-rev20250619-2.0.0</version>
+      <version>v1-rev20250706-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20250619-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20250706-2.0.0'
 }
 ```