chore: prepare for release 3.1.0 (#1064)

Signed-off-by: Ashim Shrestha <ashimshrestha2384@gmail.com>

Author: Ashim-Stha

.github/workflows/nighty-ci-release-3-branch.yml

@@ -1,6 +1,6 @@
 # SPDX-FileCopyrightText: 2023-2025 Jankari Tech Pvt. Ltd.
 # SPDX-License-Identifier: AGPL-3.0-or-later
-name: Nightly CI (Release 3.0 branch)
+name: Nightly CI (Release 3.1 branch)
 
 # workflow can be scheduled ONLY from DEFAULT branch
 # > This event will only trigger a workflow run if the workflow file is on the default branch.

CHANGELOG.md

@@ -21,7 +21,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Removed
 
-## 3.1.0 - 2026-06-02
+## 3.1.0 - 2026-06-18
 
 ### Added