compile typings in strict mode to include undefined and null in types

lib/Module.js

@@ -153,7 +153,7 @@ class Module extends DependenciesBlock {
 		this._errors = undefined;
 		/** @type {BuildMeta} */
 		this.buildMeta = undefined;
-		/** @type {object} */
+		/** @type {Record<string, any>} */
 		this.buildInfo = undefined;
 		/** @type {Dependency[] | undefined} */
 		this.presentationalDependencies = undefined;

tsconfig.types.json

@@ -6,7 +6,7 @@
     "allowJs": true,
     "checkJs": true,
     "noEmit": true,
-    "strict": false,
+    "strict": true,
     "noImplicitThis": true,
     "alwaysStrict": true,
     "types": ["node"],