Add jreleaser immutable releases

Author: LogFlames

.gitignore

@@ -0,0 +1 @@
+.DS_Store

chains-opensource.md

@@ -53,6 +53,8 @@ Applications:
   * [improve code review score](https://github.com/ossf/scorecard/issues/4500)
 * Renovate
   * [add suport for dependency version pinning](https://github.com/renovatebot/renovate/discussions/34924) 
+* JReleaser
+  * [add support for github immutable releases](https://github.com/jreleaser/jreleaser/pull/1979)
 
 Under our radar (not opened by us but relevant)
 * [sandboxed build scripts at rust](https://github.com/rust-lang/rust-project-goals/issues/108)