Investigate PayloadTooLargeError

[OmarShehata]

The stale bumper seems to be running into this error when checking the cesium-concierge repo:

2018-12-20T22:00:11.991Z Checking AnalyticalGraphicsInc/cesium-concierge
PayloadTooLargeError: request entity too large
    at readStream (/var/app/node_modules/raw-body/index.js:155:17)
    at getRawBody (/var/app/node_modules/raw-body/index.js:108:12)
    at read (/var/app/node_modules/body-parser/lib/read.js:77:3)
    at jsonParser (/var/app/node_modules/body-parser/lib/types/json.js:135:5)
    at Layer.handle [as handle_request] (/var/app/node_modules/express/lib/router/layer.js:95:5)
    at next (/var/app/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (/var/app/node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (/var/app/node_modules/express/lib/router/layer.js:95:5)
    at /var/app/node_modules/express/lib/router/index.js:281:22
    at Function.process_params (/var/app/node_modules/express/lib/router/index.js:335:12)
    at next (/var/app/node_modules/express/lib/router/index.js:275:10)
    at expressInit (/var/app/node_modules/express/lib/middleware/init.js:40:5)
    at Layer.handle [as handle_request] (/var/app/node_modules/express/lib/router/layer.js:95:5)
    at trim_prefix (/var/app/node_modules/express/lib/router/index.js:317:13)
    at /var/app/node_modules/express/lib/router/index.js:284:7
    at Function.process_params (/var/app/node_modules/express/lib/router/index.js:335:12)
    at next (/var/app/node_modules/express/lib/router/index.js:275:10)
    at query (/var/app/node_modules/express/lib/middleware/query.js:45:5)
    at Layer.handle [as handle_request] (/var/app/node_modules/express/lib/router/layer.js:95:5)
    at trim_prefix (/var/app/node_modules/express/lib/router/index.js:317:13)
    at /var/app/node_modules/express/lib/router/index.js:284:7
    at Function.process_params (/var/app/node_modules/express/lib/router/index.js:335:12)