chore(deps): update babel/{polyfill,cli,core}, eslint{,-loader}, webpack-hot-middleware

Signed-off-by: Daniel Holbach <daniel@weave.works>

client/package.json

@@ -7,7 +7,7 @@
   "private": true,
   "main": "index.js",
   "dependencies": {
-    "@babel/polyfill": "^7.8.7",
+    "@babel/polyfill": "^7.12.1",
     "babel-plugin-lodash": "3.3.4",
     "classnames": "2.2.6",
     "d3-array": "2.3.1",
@@ -49,8 +49,8 @@
     "xterm": "3.14.5"
   },
   "devDependencies": {
-    "@babel/cli": "^7.14.5",
-    "@babel/core": "^7.8.7",
+    "@babel/cli": "^7.15.7",
+    "@babel/core": "^7.15.8",
     "@babel/plugin-proposal-class-properties": "^7.8.3",
     "@babel/plugin-proposal-object-rest-spread": "^7.8.3",
     "@babel/preset-env": "^7.8.7",
@@ -64,9 +64,9 @@
     "babel-plugin-transform-object-rest-spread": "6.26.0",
     "clean-webpack-plugin": "1.0.1",
     "css-loader": "2.1.1",
-    "eslint": "^6.8.0",
+    "eslint": "^7.32.0",
     "eslint-config-airbnb": "17.1.1",
-    "eslint-loader": "^3.0.4",
+    "eslint-loader": "^4.0.2",
     "eslint-plugin-import": "2.18.2",
     "eslint-plugin-jsx-a11y": "6.2.3",
     "eslint-plugin-react": "7.14.3",
@@ -93,7 +93,7 @@
     "webpack": "^4.46.0",
     "webpack-cli": "^3.3.12",
     "webpack-dev-middleware": "3.7.2",
-    "webpack-hot-middleware": "2.25.0"
+    "webpack-hot-middleware": "^2.25.1"
   },
   "scripts": {
     "build": "webpack --config webpack.production.config.js",