Add npm audit workflow to Vue common library

[skylermcnamee-hibc]

Please check if the PR fulfills these requirements:

• After these changes, the app was run and still works as expected
• Tests for these changes were added (if applicable)
• All existing unit tests were run and still pass

Please specify the type of change this PR introduces (Bug fix, feature addition, content update, chore, etc.):

Adds Git workflow to automatically check for production vulnerabilities and write up an issue if there are any.

Additional Notes:

This is reasonably similar to the workflow on our other applications

[cyrilbravo]

Approved changes.