bump dev dependencies

Author: aholachek

package.json

@@ -29,16 +29,16 @@
   },
   "bugs": "https://github.com/aholachek/animate-css-grid/issues",
   "devDependencies": {
-    "@babel/core": "^7.2.2",
-    "@babel/preset-env": "^7.2.3",
-    "@babel/preset-typescript": "^7.1.0",
-    "babel-loader": "^8.0.4",
+    "@babel/core": "^7.7.5",
+    "@babel/preset-env": "^7.7.6",
+    "@babel/preset-typescript": "^7.7.4",
+    "babel-loader": "^8.0.6",
     "npm-run-all": "^4.1.5",
-    "tslint": "^5.12.0",
-    "typescript": "^3.2.2",
-    "webpack": "^4.28.2",
-    "webpack-cli": "^3.1.2",
-    "webpack-dev-server": "^3.1.14"
+    "tslint": "^5.20.1",
+    "typescript": "^3.7.3",
+    "webpack": "^4.41.2",
+    "webpack-cli": "^3.3.10",
+    "webpack-dev-server": "^3.9.0"
   },
   "dependencies": {
     "@popmotion/easing": "^1.0.2",