Update jest to 24 and set maxConcurrency

Buildfile

@@ -6,4 +6,4 @@ add:
   cp -r template/* packages/$(name)/
 
 test:
-  jest --runInBand
+  jest

package.json

@@ -31,7 +31,7 @@
     "axios": "^0.18.0",
     "browserify": "^16.2.3",
     "buildfile": "^1.2.20",
-    "jest": "^23.6.0",
+    "jest": "^24.5.0",
     "lerna": "^3.13.1",
     "loose-envify": "^1.4.0",
     "nodemon": "^1.18.9",
@@ -43,7 +43,7 @@
     "std-mocks": "^1.0.1",
     "supertest": "^3.3.0",
     "terser": "^3.14.1",
-    "ts-jest": "^23.10.5",
+    "ts-jest": "^24.0.0",
     "ts-node": "^7.0.1",
     "tsify": "^4.0.1",
     "tslint": "^5.12.0",

packages/server/jest.config.js

@@ -13,5 +13,6 @@ module.exports = {
     'jsx'
   ],
   setupFiles: ['<rootDir>/jest.setup.js'],
+  maxConcurrency: 1,
   verbose: false
 }