Major devDependencies upgrades: css-related + sinon

css-loader               3.6.0    ❯  5.2.4
mini-css-extract-plugin  0.9.0    ❯  1.6.0
node-sass                4.14.1   ❯  5.0.0
sinon                    9.2.4    ❯  10.0.
style-loader             1.3.0    ❯  2.0.0

package.json

@@ -63,7 +63,7 @@
     "chai-as-promised": "^7.1.1",
     "codecov": "^3.8.1",
     "conventional-changelog-ember": "^2.0.9",
-    "css-loader": "^3.4.2",
+    "css-loader": "^5.2.4",
     "eslint": "^7.25.0",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-config-airbnb-base": "^14.2.1",
@@ -72,9 +72,9 @@
     "eslint-plugin-jsx-a11y": "^6.4.1",
     "eslint-plugin-react": "^7.23.2",
     "faucet": "^0.0.1",
-    "mini-css-extract-plugin": "^0.9.0",
+    "mini-css-extract-plugin": "^1.6.0",
     "mockserver": "^3.0.0",
-    "node-sass": "^4.12.0",
+    "node-sass": "^5.0.0",
     "nodemon": "^2.0.7",
     "nyc": "^15.0.0",
     "optimize-css-assets-webpack-plugin": "^5.0.4",
@@ -84,9 +84,9 @@
     "react-dom": "^16.8.6",
     "sass-loader": "^9.0.2",
     "semantic-release": "^17.4.2",
-    "sinon": "^9.0.2",
+    "sinon": "^10.0.0",
     "sinon-chai": "^3.6.0",
-    "style-loader": "^1.1.3",
+    "style-loader": "^2.0.0",
     "tap-xunit": "^2.4.1",
     "webpack": "^4.33.0",
     "webpack-cli": "^3.3.3",