chore(main): release google-shopping-merchant-accounts-v1beta 0.13.1 (#33784)

* chore(main): release google-shopping-merchant-accounts-v1beta 0.13.1

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: release-please[bot]

.release-please-manifest.json

@@ -965,7 +965,7 @@
   "google-shopping-merchant-accounts+FILLER": "0.0.0",
   "google-shopping-merchant-accounts-v1": "0.6.0",
   "google-shopping-merchant-accounts-v1+FILLER": "0.0.0",
-  "google-shopping-merchant-accounts-v1beta": "0.13.0",
+  "google-shopping-merchant-accounts-v1beta": "0.13.1",
   "google-shopping-merchant-accounts-v1beta+FILLER": "0.0.0",
   "google-shopping-merchant-conversions": "0.3.0",
   "google-shopping-merchant-conversions+FILLER": "0.0.0",

google-shopping-merchant-accounts-v1beta/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+### 0.13.1 (2026-04-09)
+
+#### Documentation
+
+* update SelectiveGapicGeneration usage doc ([#33484](https://github.com/googleapis/google-cloud-ruby/issues/33484)) 
+
 ### 0.13.0 (2026-03-31)
 
 #### Features

google-shopping-merchant-accounts-v1beta/lib/google/shopping/merchant/accounts/v1beta/version.rb

@@ -22,7 +22,7 @@ module Shopping
     module Merchant
       module Accounts
         module V1beta
-          VERSION = "0.13.0"
+          VERSION = "0.13.1"
         end
       end
     end

google-shopping-merchant-accounts-v1beta/snippets/snippet_metadata_google.shopping.merchant.accounts.v1beta.json

@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-shopping-merchant-accounts-v1beta",
-    "version": "0.13.0",
+    "version": "0.13.1",
     "language": "RUBY",
     "apis": [
       {