chore(main): release google-cloud-asset 1.9.0 (#32952)

* chore(main): release google-cloud-asset 1.9.0

* chore: combine duplicate Ruby 4.0 release notes

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Yoshi Automation Bot <yoshi-automation@google.com>

Author: release-please[bot]

.release-please-manifest.json

@@ -97,7 +97,7 @@
   "google-cloud-artifact_registry-v1+FILLER": "0.0.0",
   "google-cloud-artifact_registry-v1beta2": "0.18.0",
   "google-cloud-artifact_registry-v1beta2+FILLER": "0.0.0",
-  "google-cloud-asset": "1.8.3",
+  "google-cloud-asset": "1.9.0",
   "google-cloud-asset+FILLER": "0.0.0",
   "google-cloud-asset-v1": "1.7.0",
   "google-cloud-asset-v1+FILLER": "0.0.0",

google-cloud-asset/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Release History
 
+### 1.9.0 (2026-03-19)
+
+#### Features
+
+* Upgrade dependencies for Ruby v4.0 and drop Ruby v3.1 support
+
 ### 1.8.3 (2025-09-12)
 
 #### Documentation

google-cloud-asset/lib/google/cloud/asset/version.rb

@@ -16,7 +16,7 @@
 module Google
   module Cloud
     module Asset
-      VERSION = "1.8.3".freeze
+      VERSION = "1.9.0".freeze
     end
   end
 end