chore: regenerate chat client (googleapis#27155)

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-rev20250508-2.0.0</version>
+      <version>v1-rev20250516-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20250508-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20250516-2.0.0'
 }
 ```
 

clients/google-api-services-chat/v1/2.0.0/com/google/api/services/chat/v1/model/GoogleAppsCardV1SelectionItem.java

@@ -39,12 +39,6 @@ public final class GoogleAppsCardV1SelectionItem extends com.google.api.client.j
   @com.google.api.client.util.Key
   private java.lang.String bottomText;
 
-  /**
-   * The value may be {@code null}.
-   */
-  @com.google.api.client.util.Key
-  private GoogleAppsCardV1MaterialIcon materialIcon;
-
   /**
    * Whether the item is selected by default. If the selection input only accepts one value (such as
    * for radio buttons or a dropdown menu), only set this field for one item.
@@ -94,21 +88,6 @@ public GoogleAppsCardV1SelectionItem setBottomText(java.lang.String bottomText)
     return this;
   }
 
-  /**
-   * @return value or {@code null} for none
-   */
-  public GoogleAppsCardV1MaterialIcon getMaterialIcon() {
-    return materialIcon;
-  }
-
-  /**
-   * @param materialIcon materialIcon or {@code null} for none
-   */
-  public GoogleAppsCardV1SelectionItem setMaterialIcon(GoogleAppsCardV1MaterialIcon materialIcon) {
-    this.materialIcon = materialIcon;
-    return this;
-  }
-
   /**
    * Whether the item is selected by default. If the selection input only accepts one value (such as
    * for radio buttons or a dropdown menu), only set this field for one item.

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-rev20250508-2.0.0</version>
-  <name>Google Chat API v1-rev20250508-2.0.0</name>
+  <version>v1-rev20250516-2.0.0</version>
+  <name>Google Chat API v1-rev20250516-2.0.0</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-rev20250508-2.0.0</version>
+      <version>v1-rev20250516-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20250508-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20250516-2.0.0'
 }
 ```