Update body-parser requirement from ~1.18.2 to ~1.19.0

Updates the requirements on [body-parser](https://github.com/expressjs/body-parser) to permit the latest version.
- [Release notes](https://github.com/expressjs/body-parser/releases)
- [Changelog](https://github.com/expressjs/body-parser/blob/master/HISTORY.md)
- [Commits](expressjs/body-parser@1.18.2...1.19.0)

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -20,7 +20,7 @@
     "stylefix": "node node_modules/standard/bin/cmd.js --fix"
   },
   "dependencies": {
-    "body-parser": "~1.18.2",
+    "body-parser": "~1.19.0",
     "cookie-parser": "~1.4.3",
     "debug": "~2.6.9",
     "express": "~4.15.5",