fix(testing): expose graceful-shutdown e2e specs

Override root tsconfig.json exclusion so TypeScript project service finds
e2e specs. Also set target, strict, and
esModuleInterop compiler options.

integration/graceful-shutdown/tsconfig.json

@@ -2,6 +2,9 @@
   "extends": "../../tsconfig.json",
   "compilerOptions": {
     "module": "commonjs",
+    "target": "es2020",
+    "strict": true,
+    "esModuleInterop": true,
     "baseUrl": ".",
     "paths": {
       "@nestjs/common": ["../../packages/common/index.ts"],
@@ -10,5 +13,6 @@
       "@nestjs/testing": ["../../packages/testing/index.ts"]
     }
   },
-  "include": ["e2e/**/*.ts", "src/**/*.ts"]
+  "include": ["src/**/*", "e2e/**/*"],
+  "exclude": ["node_modules"]
 }