upgrading typescript; fixing audit issues

.github/CONTRIBUTING.md

@@ -28,7 +28,7 @@ Note that before a PR will be accepted, you must ensure:
 
 ### Useful Scripts
 
-- `npm run bootstrap` This runs `lerna bootstrap` which will install dependencies in this repository's packages and cross-link packages where necessary.
+- `npm run bootstrap` This runs `npm install` which will install dependencies in this repository's packages and cross-link packages where necessary.
 - `npm run build` This compiles TypeScript code in each package (this is especially important if one package relies on changes in another when you're running tests). This is just an alias for `lerna run tsc`.
 - `npm run format` This checks that formatting has been applied with Prettier.
 - `npm test` This runs all Jest tests in all packages in this repository.

package.json

@@ -3,7 +3,7 @@
   "private": true,
   "scripts": {
     "audit-all": "lerna run audit-moderate",
-    "bootstrap": "lerna bootstrap",
+    "bootstrap": "npm install",
     "build": "lerna run tsc",
     "check-all": "concurrently \"npm:format-check\" \"npm:lint\" \"npm:test\" \"npm:build -- -- --noEmit\"",
     "format": "prettier --write packages/**/*.ts",
@@ -17,16 +17,17 @@
     "@types/jest": "^27.0.2",
     "@types/node": "^16.18.1",
     "@types/signale": "^1.4.1",
+    "@typescript-eslint/eslint-plugin": "^6.0.0",
     "@typescript-eslint/parser": "^6.0.0",
     "concurrently": "^6.1.0",
-    "eslint": "^7.23.0",
-    "eslint-plugin-github": "^4.1.3",
+    "eslint": "^8.0.1",
+    "eslint-plugin-github": "^4.8.0",
     "eslint-plugin-jest": "^27.2.3",
     "flow-bin": "^0.115.0",
     "jest": "^27.2.5",
     "lerna": "^7.1.4",
-    "prettier": "^1.19.1",
+    "prettier": "^3.0.0",
     "ts-jest": "^27.0.5",
-    "typescript": "^3.9.9"
+    "typescript": "^4.3.0"
   }
 }

tsconfig.json

@@ -5,7 +5,8 @@
     "strict": true,
     "declaration": true,
     "target": "es6",
-    "sourceMap": true
+    "sourceMap": true,
+    "useUnknownInCatchVariables": false,
   },
   "exclude": [
     "node_modules",