fix: package.json to reduce vulnerabilities
fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:lodash:20180130

Latest report for ericelliott/bunyan-request-logger:
https://snyk.io/test/github/ericelliott/bunyan-request-logger
ericelliott/bunyan-request-logger