Prepare the 1.3.0 release.

Author: nirvdrum

CHANGELOG.md

@@ -1,5 +1,10 @@
 ## Current
 
+## Release v1.3.0 (28 May 2024)
+
+* (#1042) Align Java Executor Service behavior for `shuttingdown?`, `shutdown?`
+* (#1038) Add `Concurrent.usable_processor_count` that is cgroups aware.
+
 ## Release v1.2.3 (16 Jan 2024)
 
 * See [the GitHub release](https://github.com/ruby-concurrency/concurrent-ruby/releases/tag/v1.2.3) for details.

docs-source/signpost.md

@@ -3,7 +3,7 @@
 Pick a `concurrent-ruby` version:
 
 * [master](./master/index.html)
-* [1.2.3 with edge 0.7.0](./1.2.3/index.html)
+* [1.3.0 with edge 0.7.0](./1.2.3/index.html)
 * [1.1.10 with edge 0.6.0](./1.1.10/index.html)
 * [1.1.9 with edge 0.6.0](./1.1.9/index.html)
 * [1.1.8 with edge 0.6.0](./1.1.8/index.html)

lib/concurrent-ruby/concurrent/version.rb

@@ -1,3 +1,3 @@
 module Concurrent
-  VERSION = '1.2.3'
+  VERSION = '1.3.0'
 end