Update lodash to 4.17.20+ due to security vulnerability - CVE-2020-8203

Issue Summary

lodash is vulnerable to prototype pollution attack. The vulnerability exists due to the ability to inject properties on Object.prototype using the function `zipObjectDeep`, leading to DoS, and possibly other forms of attacks.

More details here: https://snyk.io/vuln/SNYK-JS-LODASH-590103 

Steps to Reproduce

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Expected Results

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Actual Results

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Workaround

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