changelog: release Dune 3.19.1 (#3164)

Signed-off-by: Etienne Marais <dev@maiste.fr>

Author: maiste

data/changelog/releases/dune/2025-06-11-dune.3.19.1.md

@@ -0,0 +1,15 @@
+---
+title: Dune.3.19.0
+tags: [dune, platform]
+changelog: |
+    ### Fixed
+
+    - Revert changes in `dune exec` behaviour introduced in 3.19.0. (#11879, fixes
+      #11870, #11867 and #11881, @Alizter)
+---
+
+
+The Dune Team is happy to announce the release of Dune `3.19.1`.
+
+This patch release contains a fix reverting some regressions on how `dune exec`
+handles processes. It restores the previous behaviour.