Bump 3rd party dev dependencies

package.json

@@ -68,23 +68,23 @@
     "@babel/plugin-proposal-nullish-coalescing-operator": "^7.10.1",
     "@babel/plugin-proposal-optional-chaining": "^7.12.1",
     "@babel/plugin-syntax-dynamic-import": "^7.2.0",
-    "@babel/preset-env": "^7.10.2",
+    "@babel/preset-env": "^7.12.7",
     "@converse/headless": "file:src/headless",
     "@fortawesome/fontawesome-free": "5.14.0",
-    "autoprefixer": "^9.8.4",
+    "autoprefixer": "^9.8.6",
     "babel-eslint": "^10.1.0",
     "babel-loader": "^8.1.0",
     "bootstrap": "^4.3.1",
     "bootstrap.native": "^2.0.27",
     "bootstrap.native-loader": "2.0.0",
     "clean-css-cli": "^4.3.0",
-    "copy-webpack-plugin": "^6.0.2",
+    "copy-webpack-plugin": "^6.3.2",
     "css-loader": "^3.5.3",
     "dayjs": "1.8.30",
     "eslint": "^7.3.0",
     "eslint-plugin-lodash": "^7.1.0",
     "exports-loader": "^0.7.0",
-    "fast-text-encoding": "^1.0.2",
+    "fast-text-encoding": "^1.0.3",
     "favico.js-slevomat": "^0.3.11",
     "file-loader": "^6.0.0",
     "haunted": "^4.7.0",
@@ -108,7 +108,7 @@
     "mini-css-extract-plugin": "^0.9.0",
     "minimist": "^1.2.3",
     "node-sass": "^4.14.1",
-    "npm": "^6.14.6",
+    "npm": "^6.14.9",
     "po-loader": "^0.5.0",
     "po2json": "^1.0.0-beta",
     "postcss-clean": "^1.1.0",