[workflow-web] Update a few dependencies
These dependencies have CVEs out against them. I've manually clicked
through the UI after updating these and didn't notice any issues.
"font-awesome": "=4.7.0",
"highlight.js": "=8.3.0",
"keymaster": "=1.6.2",
- "lodash": "=4.2.1",
- "marked": "=0.3.6",
- "moment": "=2.17.1",
+ "lodash": "=4.17.11",
+ "marked": "=0.6.2",
+ "moment": "=2.24.0",
"parse-diff": "=0.0.15",
"reflect-metadata": "=0.1.8",
"rxjs": "=5.0.0-beta.12",
