Add .snyk and patch axios vulnerability

[owenvoke]

See: https://snyk.io/vuln/SNYK-JS-AXIOS-174505

Description

This PR fixes one or more vulnerable packages in the npm dependencies of this project.

This:

• Adds a Snyk policy (.snyk) file, with updated settings.
• Patches SNYK-JS-AXIOS-174505

Types of changes

Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

Put an x in all the boxes that apply:

• I have read the CONTRIBUTING document.
• My pull request addresses exactly one patch/feature.
• I have created a branch for this patch/feature.

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