upgraded lodash version 4.17.15 to 4.17.20 to fix reported issue

[Salinn]

What:

Looking to update lodash from version 4.17.15 to 4.17.20 to fix https://snyk.io/test/npm/lodash/4.17.15

Why:

Upgrade to a version without the know vulnerability

How:

Updating the package.json

Checklist:

• [N/A] Documentation
• Tests
• [N/A] Updated Type Definitions
• Ready to be merged

I believe this would be ready to be merged and a version bump to occur after being reviewed.

[codecov]

Codecov Report

Merging #337 (b35c2f8) into main (e148894) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##              main      #337   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           23        23           
  Lines          537       537           
  Branches       195       195           
=========================================
  Hits           537       537           

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[pvargas]

It should probably be updated to version 4.17.21 instead, since there are known vulnerabilities in version 4.17.20: https://snyk.io/test/npm/lodash/4.17.20

[MichaelDeBoey]

Superseded by #676