[Security] Bump acorn from 6.4.0 to 6.4.1 (#19)

* [Security] Bump acorn from 6.4.0 to 6.4.1

Bumps [acorn](https://github.com/acornjs/acorn) from 6.4.0 to 6.4.1. **This update includes a security fix.**
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](acornjs/acorn@6.4.0...6.4.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* update libraries

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Phillip Manwaring <phillip.manwaring@gmail.com>

Author: dependabot-preview[bot]

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html)
 
+## [3.1.3]  (2020-03-16)
+
+### Changed
+
+- Updated out of date libraries
+
 ## [3.1.2]  (2020-02-11)
 
 ### Fixed
@@ -170,6 +176,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/),
 - Update older libraries
 - Now publish from Git tags instead of master pushes
 
+[3.1.3]: https://github.com/manwaring/lambda-wrapper/compare/v3.1.2...v3.1.3
 [3.1.2]: https://github.com/manwaring/lambda-wrapper/compare/v3.1.1...v3.1.2
 [3.1.1]: https://github.com/manwaring/lambda-wrapper/compare/v3.1.0...v3.1.1
 [3.1.0]: https://github.com/manwaring/lambda-wrapper/compare/v3.0.0...v3.1.0