chore(main): release googleauth 1.15.0 (#536)

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

Author: release-please[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.14.0"
+  ".": "1.15.0"
 }

CHANGELOG.md

@@ -1,5 +1,20 @@
 # Release History
 
+### 1.15.0 (2025-08-25)
+
+#### Features
+
+* add typed errors to authentication library ([#533](https://github.com/googleapis/google-auth-library-ruby/issues/533)) 
+* Support for JWT 3.x ([#542](https://github.com/googleapis/google-auth-library-ruby/issues/542)) 
+#### Bug Fixes
+
+* fix incorrect error and apply some code complexity refactoring ([#529](https://github.com/googleapis/google-auth-library-ruby/issues/529)) 
+* support Pathname for cred loading ([#537](https://github.com/googleapis/google-auth-library-ruby/issues/537)) 
+#### Documentation
+
+* add summary documentation on credentials types and improve YARD comments 
+* add summary documentation on credentials types and improve YARD comments ([#530](https://github.com/googleapis/google-auth-library-ruby/issues/530)) 
+
 ### 1.14.0 (2025-03-14)
 
 #### Features

lib/googleauth/version.rb

@@ -16,6 +16,6 @@ module Google
   # Module Auth provides classes that provide Google-specific authorization
   # used to access Google APIs.
   module Auth
-    VERSION = "1.14.0".freeze
+    VERSION = "1.15.0".freeze
   end
 end