add typecheck to github actions

Author: Brian Muller

.github/workflows/ci.yml

@@ -21,3 +21,4 @@ jobs:
       - run: pnpm lint
       - run: pnpm test
       - run: pnpm build
+      - run: pnpm typecheck

package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "build": "pnpm --filter '@parallelmarkets/*' build",
     "lint": "pnpm -r lint",
-    "test": "pnpm -r test"
+    "test": "pnpm -r test",
+    "typecheck": "pnpm -r typecheck"
   },
   "keywords": [
     "ParallelMarkets"