Release prep v3.21.0 (#453)

Co-authored-by: GitHub Actions <[email protected]>

Author: github-actions[bot]

Diff for: CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org).
 
+## [v3.21.0](https://github.com/puppetlabs/puppetlabs-peadm/tree/v3.21.0) - 2024-07-15
+
+[Full Changelog](https://github.com/puppetlabs/puppetlabs-peadm/compare/v3.20.0...v3.21.0)
+
+### Added
+
+- PE-38219 - Support air gapped installation while using a Windows as Jump host [#438](https://github.com/puppetlabs/puppetlabs-peadm/pull/438) ([cathal41](https://github.com/cathal41))
+
 ## [v3.20.0](https://github.com/puppetlabs/puppetlabs-peadm/tree/v3.20.0) - 2024-07-01
 
 [Full Changelog](https://github.com/puppetlabs/puppetlabs-peadm/compare/v3.19.0...v3.20.0)

Diff for: metadata.json

@@ -1,6 +1,6 @@
 {
   "name": "puppetlabs-peadm",
-  "version": "3.20.0",
+  "version": "3.21.0",
   "author": "puppetlabs",
   "summary": "Bolt plans used to deploy an at-scale Puppet Enterprise architecture",
   "license": "Apache-2.0",