fix(testing): update the API

#### testing:v1

The following keys were changed:
- schemas.TestSetup.properties.additionalApks.description
- schemas.TestSetup.properties.initialSetupApks.description

Author: yoshi-automation

discovery/testing-v1.json

@@ -454,7 +454,7 @@
       }
     }
   },
-  "revision": "20250819",
+  "revision": "20251003",
   "rootUrl": "https://testing.googleapis.com/",
   "schemas": {
     "Account": {
@@ -2651,7 +2651,7 @@
           "description": "The device will be logged in on this account for the duration of the test."
         },
         "additionalApks": {
-          "description": "APKs to install in addition to those being directly tested. These will be installed after the app under test. Currently capped at 100.",
+          "description": "APKs to install in addition to those being directly tested. These will be installed after the app under test. Limited to a combined total of 100 initial setup and additional files.",
           "items": {
             "$ref": "Apk"
           },
@@ -2683,7 +2683,7 @@
           "type": "array"
         },
         "initialSetupApks": {
-          "description": "Optional. Initial setup APKs to install before the app under test is installed. Currently capped at 100.",
+          "description": "Optional. Initial setup APKs to install before the app under test is installed. Limited to a combined total of 100 initial setup and additional files.",
           "items": {
             "$ref": "Apk"
           },

src/apis/testing/v1.ts

@@ -1536,7 +1536,7 @@ export namespace testing_v1 {
      */
     account?: Schema$Account;
     /**
-     * APKs to install in addition to those being directly tested. These will be installed after the app under test. Currently capped at 100.
+     * APKs to install in addition to those being directly tested. These will be installed after the app under test. Limited to a combined total of 100 initial setup and additional files.
      */
     additionalApks?: Schema$Apk[];
     /**
@@ -1556,7 +1556,7 @@ export namespace testing_v1 {
      */
     filesToPush?: Schema$DeviceFile[];
     /**
-     * Optional. Initial setup APKs to install before the app under test is installed. Currently capped at 100.
+     * Optional. Initial setup APKs to install before the app under test is installed. Limited to a combined total of 100 initial setup and additional files.
      */
     initialSetupApks?: Schema$Apk[];
     /**