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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-GETOBJECT-1054932
- https://snyk.io/vuln/SNYK-JS-GRUNT-2635969
- https://snyk.io/vuln/SNYK-JS-GRUNT-2813632
- https://snyk.io/vuln/SNYK-JS-GRUNT-597546
- https://snyk.io/vuln/SNYK-JS-HAWK-2808852
- https://snyk.io/vuln/SNYK-JS-JSYAML-173999
- https://snyk.io/vuln/SNYK-JS-JSYAML-174129
- https://snyk.io/vuln/SNYK-JS-LODASH-1018905
- https://snyk.io/vuln/SNYK-JS-LODASH-1040724
- https://snyk.io/vuln/SNYK-JS-LODASH-450202
- https://snyk.io/vuln/SNYK-JS-LODASH-608086
- https://snyk.io/vuln/SNYK-JS-LODASH-73638
- https://snyk.io/vuln/SNYK-JS-LODASH-73639
- https://snyk.io/vuln/SNYK-JS-MINIMATCH-1019388
- https://snyk.io/vuln/SNYK-JS-MINIMATCH-3050818
- https://snyk.io/vuln/SNYK-JS-MINIMIST-2429795
- https://snyk.io/vuln/SNYK-JS-MINIMIST-559764
- https://snyk.io/vuln/npm:hoek:20180212
- https://snyk.io/vuln/npm:lodash:20180130
- https://snyk.io/vuln/npm:minimatch:20160620
- https://snyk.io/vuln/npm:tunnel-agent:20170305

Author: snyk-bot