release: Update allotropy version to 0.1.131 (#1214)

### Fixed

- Resolve duplicate columns in Stunner DLS output (#1213)
- Correct peak height and area unit conversions in Chromeleon parser
(#1212)

Author: nathan-stender

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this packages will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.131] - 2026-06-01
+
+### Fixed
+
+- Resolve duplicate columns in Stunner DLS output (#1213)
+- Correct peak height and area unit conversions in Chromeleon parser (#1212)
+
 ## [0.1.130] - 2026-05-26
 
 ### Fixed

src/allotropy/__about__.py

@@ -1 +1 @@
-__version__ = "0.1.130"
+__version__ = "0.1.131"