Apply somple major version upgrades

package.json

@@ -56,7 +56,7 @@
     "browser-request": "^0.3.3",
     "gfm.css": "^1.1.2",
     "highlight.js": "^10.5.0",
-    "jsrsasign": "^9.1.9",
+    "jsrsasign": "^10.1.5",
     "katex": "^0.12.0",
     "matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
     "matrix-react-sdk": "github:matrix-org/matrix-react-sdk#develop",
@@ -87,25 +87,25 @@
     "@babel/runtime": "^7.12.5",
     "@types/flux": "^3.1.9",
     "@types/modernizr": "^3.5.3",
-    "@types/node": "^12.19.15",
+    "@types/node": "^14.14.22",
     "@types/react": "^16.9",
     "@types/react-dom": "^16.9.10",
     "@types/sanitize-html": "^1.27.1",
     "autoprefixer": "^9.8.6",
     "babel-eslint": "^10.1.0",
-    "babel-jest": "^24.9.0",
+    "babel-jest": "^26.6.3",
     "babel-loader": "^8.2.2",
     "canvas": "^2.6.1",
     "chokidar": "^3.5.1",
-    "concurrently": "^4.1.2",
+    "concurrently": "^5.3.0",
     "cpx": "^1.5.0",
     "css-loader": "^3.6.0",
     "eslint": "7.18.0",
     "eslint-config-matrix-org": "^0.2.0",
-    "eslint-plugin-babel": "^4.1.2",
-    "eslint-plugin-flowtype": "^2.50.3",
+    "eslint-plugin-babel": "^5.3.1",
+    "eslint-plugin-flowtype": "^5.2.0",
     "eslint-plugin-react": "^7.22.0",
-    "eslint-plugin-react-hooks": "^2.5.1",
+    "eslint-plugin-react-hooks": "^4.2.0",
     "extract-text-webpack-plugin": "^4.0.0-beta.0",
     "fake-indexeddb": "^3.1.2",
     "file-loader": "^5.1.0",
@@ -119,7 +119,7 @@
     "matrix-react-test-utils": "^0.2.2",
     "mini-css-extract-plugin": "^0.12.0",
     "minimist": "^1.2.5",
-    "mkdirp": "^0.5.5",
+    "mkdirp": "^1.0.4",
     "modernizr": "^3.11.4",
     "node-fetch": "^2.6.1",
     "optimize-css-assets-webpack-plugin": "^5.0.4",
@@ -134,12 +134,12 @@
     "postcss-scss": "^2.1.1",
     "postcss-simple-vars": "^5.0.2",
     "postcss-strip-inline-comments": "^0.1.5",
-    "rimraf": "^2.7.1",
+    "rimraf": "^3.0.2",
     "shell-escape": "^0.2.0",
     "simple-proxy-agent": "^1.1.0",
-    "stylelint": "^12.0.1",
+    "stylelint": "^13.9.0",
     "terser-webpack-plugin": "^2.3.8",
-    "typescript": "^3.9.7",
+    "typescript": "^4.1.3",
     "webpack": "^4.46.0",
     "webpack-cli": "^3.3.12",
     "webpack-dev-server": "^3.11.2"