chore: regenerate fcm client (googleapis#32904)

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-fcm/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-fcm</artifactId>
-      <version>v1-rev20260911-2.0.0</version>
+      <version>v1-rev20260925-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-fcm:v1-rev20260911-2.0.0'
+  implementation 'com.google.apis:google-api-services-fcm:v1-rev20260925-2.0.0'
 }
 ```
 

clients/google-api-services-fcm/v1/2.0.0/com/google/api/services/fcm/v1/FirebaseCloudMessaging.java

@@ -176,7 +176,8 @@ public class Messages {
       /**
        * Send a message to specified target (a [Firebase Installation ID (FID)](/docs/cloud-
        * messaging/android/get-started#access-firebase-installation-id), registration token, topic, or
-       * condition).
+       * condition). If duplicate fields or parameters are provided in a request (such as repeated JSON
+       * keys in the request body or duplicate query parameters), the last occurrence takes precedence.
        *
        * Create a request for the method "messages.send".
        *
@@ -205,7 +206,8 @@ public class Send extends FirebaseCloudMessagingRequest<com.google.api.services.
         /**
          * Send a message to specified target (a [Firebase Installation ID (FID)](/docs/cloud-
          * messaging/android/get-started#access-firebase-installation-id), registration token, topic, or
-         * condition).
+         * condition). If duplicate fields or parameters are provided in a request (such as repeated JSON
+         * keys in the request body or duplicate query parameters), the last occurrence takes precedence.
          *
          * Create a request for the method "messages.send".
          *

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

@@ -8,8 +8,8 @@
 
   <groupId>com.google.apis</groupId>
   <artifactId>google-api-services-fcm</artifactId>
-  <version>v1-rev20260911-2.0.0</version>
-  <name>Firebase Cloud Messaging API v1-rev20260911-2.0.0</name>
+  <version>v1-rev20260925-2.0.0</version>
+  <name>Firebase Cloud Messaging API v1-rev20260925-2.0.0</name>
   <packaging>jar</packaging>
 
   <inceptionYear>2011</inceptionYear>

clients/google-api-services-fcm/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-fcm</artifactId>
-      <version>v1-rev20260911-2.0.0</version>
+      <version>v1-rev20260925-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-fcm:v1-rev20260911-2.0.0'
+  implementation 'com.google.apis:google-api-services-fcm:v1-rev20260925-2.0.0'
 }
 ```