chore(main): release google-cloud-gke_hub-v1 2.6.0 (#34283)

* chore(main): release google-cloud-gke_hub-v1 2.6.0

* 🦉 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

@@ -461,7 +461,7 @@
   "google-cloud-gke_connect-gateway-v1beta1+FILLER": "0.0.0",
   "google-cloud-gke_hub": "2.2.0",
   "google-cloud-gke_hub+FILLER": "0.0.0",
-  "google-cloud-gke_hub-v1": "2.5.0",
+  "google-cloud-gke_hub-v1": "2.6.0",
   "google-cloud-gke_hub-v1+FILLER": "0.0.0",
   "google-cloud-gke_hub-v1beta1": "0.20.1",
   "google-cloud-gke_hub-v1beta1+FILLER": "0.0.0",

google-cloud-gke_hub-v1/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+### 2.6.0 (2026-06-11)
+
+#### Features
+
+* update gapic-common dependency to 1.3 and document retry jitter ([#34047](https://github.com/googleapis/google-cloud-ruby/issues/34047)) 
+
 ### 2.5.0 (2026-05-06)
 
 #### Features

google-cloud-gke_hub-v1/lib/google/cloud/gke_hub/v1/version.rb

@@ -21,7 +21,7 @@ module Google
   module Cloud
     module GkeHub
       module V1
-        VERSION = "2.5.0"
+        VERSION = "2.6.0"
       end
     end
   end

google-cloud-gke_hub-v1/snippets/snippet_metadata_google.cloud.gkehub.v1.json

@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-gke_hub-v1",
-    "version": "2.5.0",
+    "version": "2.6.0",
     "language": "RUBY",
     "apis": [
       {