Prepare release v4.0.12 (#443)

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

Author: heroku-linguist[bot]

CHANGELOG.md

@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 
+## [4.0.12] - 2025-11-03
+
+
 ## [4.0.11] - 2025-08-01
 
 ### Changed
@@ -273,7 +276,8 @@ properties](https://docs.oracle.com/javase/8/docs/technotes/guides/net/proxies.h
 
 *  Improved detection of Heroku API key. Now uses .netrc first.
 
-[unreleased]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.11...HEAD
+[unreleased]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.12...HEAD
+[4.0.12]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.11...v4.0.12
 [4.0.11]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.10...v4.0.11
 [4.0.10]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.9...v4.0.10
 [4.0.9]: https://github.com/heroku/heroku-jvm-application-deployer/compare/v4.0.8...v4.0.9

pom.xml

@@ -4,7 +4,7 @@
 
   <groupId>com.heroku</groupId>
   <artifactId>heroku-jvm-application-deployer</artifactId>
-  <version>4.0.12-SNAPSHOT</version>
+  <version>4.0.12</version>
   <packaging>jar</packaging>
 
   <name>Heroku JVM Application Deployer</name>