fix: tools/node_modules/eslint/node_modules/once/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANSIREGEX-1583908
- https://snyk.io/vuln/SNYK-JS-HAWK-2808852
- https://snyk.io/vuln/SNYK-JS-ISTANBULREPORTS-2328088
- https://snyk.io/vuln/SNYK-JS-JSYAML-173999
- https://snyk.io/vuln/SNYK-JS-JSYAML-174129
- https://snyk.io/vuln/SNYK-JS-MINIMIST-2429795
- https://snyk.io/vuln/SNYK-JS-MINIMIST-559764
- https://snyk.io/vuln/SNYK-JS-SEMVER-3247795
- https://snyk.io/vuln/SNYK-JS-YARGSPARSER-560381
- https://snyk.io/vuln/npm:braces:20180219
- https://snyk.io/vuln/npm:hoek:20180212
- https://snyk.io/vuln/npm:tunnel-agent:20170305

Author: snyk-bot