chore: regenerate chat client (googleapis#29824)

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-rev20251009-2.0.0</version>
+      <version>v1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20251009-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20251014-2.0.0'
 }
 ```
 

clients/google-api-services-chat/v1/2.0.0/com/google/api/services/chat/v1/model/GoogleAppsCardV1DateTimePicker.java

@@ -88,7 +88,7 @@ public final class GoogleAppsCardV1DateTimePicker extends com.google.api.client.
   private java.lang.String type;
 
   /**
-   * The default value displayed in the widget, in milliseconds since [Unix epoch
+   * Optional. The default value displayed in the widget, in milliseconds since [Unix epoch
    * time](https://en.wikipedia.org/wiki/Unix_time). Specify the value based on the type of picker
    * (`DateTimePickerType`): * `DATE_AND_TIME`: a calendar date and time in UTC. For example, to
    * represent January 1, 2023 at 12:00 PM UTC, use `1672574400000`. * `DATE_ONLY`: a calendar date
@@ -218,7 +218,7 @@ public GoogleAppsCardV1DateTimePicker setType(java.lang.String type) {
   }
 
   /**
-   * The default value displayed in the widget, in milliseconds since [Unix epoch
+   * Optional. The default value displayed in the widget, in milliseconds since [Unix epoch
    * time](https://en.wikipedia.org/wiki/Unix_time). Specify the value based on the type of picker
    * (`DateTimePickerType`): * `DATE_AND_TIME`: a calendar date and time in UTC. For example, to
    * represent January 1, 2023 at 12:00 PM UTC, use `1672574400000`. * `DATE_ONLY`: a calendar date
@@ -231,7 +231,7 @@ public java.lang.Long getValueMsEpoch() {
   }
 
   /**
-   * The default value displayed in the widget, in milliseconds since [Unix epoch
+   * Optional. The default value displayed in the widget, in milliseconds since [Unix epoch
    * time](https://en.wikipedia.org/wiki/Unix_time). Specify the value based on the type of picker
    * (`DateTimePickerType`): * `DATE_AND_TIME`: a calendar date and time in UTC. For example, to
    * represent January 1, 2023 at 12:00 PM UTC, use `1672574400000`. * `DATE_ONLY`: a calendar date

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-rev20251009-2.0.0</version>
-  <name>Google Chat API v1-rev20251009-2.0.0</name>
+  <version>v1-rev20251014-2.0.0</version>
+  <name>Google Chat API v1-rev20251014-2.0.0</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-rev20251009-2.0.0</version>
+      <version>v1-rev20251014-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-chat:v1-rev20251009-2.0.0'
+  implementation 'com.google.apis:google-api-services-chat:v1-rev20251014-2.0.0'
 }
 ```