Bump dev dependencies

package.json

@@ -98,15 +98,15 @@
     "core-js": "^3.4.8",
     "enzyme": "^3.10.0",
     "enzyme-adapter-react-16": "^1.15.0",
-    "eslint": "^6.0.0",
+    "eslint": "^7.0.0",
     "eslint-config-airbnb": "^18.2.0",
-    "eslint-config-react-app": "^3.0.5",
+    "eslint-config-react-app": "^6.0.0",
     "eslint-loader": "^4.0.2",
-    "eslint-plugin-flowtype": "^4.7.0",
+    "eslint-plugin-flowtype": "^5.2.0",
     "eslint-plugin-import": "^2.18.0",
-    "eslint-plugin-jest": "^23.16.0",
+    "eslint-plugin-jest": "^24.0.0",
     "eslint-plugin-jsx-a11y": "^6.2.3",
-    "eslint-plugin-react": "^7.14.2",
+    "eslint-plugin-react": "^7.21.0",
     "glob": "^7.1.4",
     "http-server": "^0.12.3",
     "jest": "^26.0.1",
@@ -115,7 +115,7 @@
     "jsdom": "15.1.1",
     "puppeteer": "^4.0.0",
     "react": "^16.8.6",
-    "react-dev-utils": "^10.2.1",
+    "react-dev-utils": "^11.0.2",
     "react-dom": "^16.8.6",
     "react-refresh": "^0.8.3",
     "redux-mock-store": "^1.5.1",