backport rootDir fix breaking build

Author: dprevost-LMI

package.json

@@ -55,7 +55,7 @@
     "compile:check": "if [ ! -f lib/index.js ] || [ $(find lib -type f | wc -l) -le 30 ]; then echo 'File structure under lib is broken'; exit 1; fi",
     "tsc:root-types": "node types-checks-filter-out-node_modules.js",
     "test": "run-s test:*",
-    "test:tsc": "tsc --project tsconfig.json --noEmit",
+    "test:tsc": "tsc --project tsconfig.json --noEmit --rootDir .",
     "test:lint": "eslint .",
     "test:unit": "vitest --run",
     "test:types": "npm run ts && npm run tsc:root-types",