`deepmerge-ts` dependency <4.0.2 has a security vulnerability CVE-2022-24802

# Bug Report

deepmerge-js < 4.0.2 apparently contains a Prototype Pollution security vulnerability as reported in

https://security.snyk.io/vuln/SNYK-JS-DEEPMERGETS-2438399
https://nvd.nist.gov/vuln/detail/CVE-2022-24802

## Proposed changes

Update the deepmerge-js to version >= 4.0.2 in package.json

Thank you!