chore: update typescript to 5.4.3

lib/types/json-schema.ts

@@ -174,7 +174,7 @@ export type RequiredMembers<T> = StrictNullChecksWrapper<
 
 type Nullable<T> = undefined extends T
   ? {
-      nullable: true
+      nullable?: true
       const?: null // any non-null value would fail `const: null`, `null` would fail any other value in const
       enum?: Readonly<(T | null)[]> // `null` must be explicitly included in "enum" for `null` to pass
       default?: T | null

package.json

@@ -104,7 +104,7 @@
     "rollup-plugin-terser": "^7.0.2",
     "ts-node": "^10.9.2",
     "tsify": "^5.0.4",
-    "typescript": "^4.9.5"
+    "typescript": "^5.4.3"
   },
   "collective": {
     "type": "opencollective",

spec/types/async-validate.spec.ts

@@ -110,7 +110,7 @@ describe("$async validation and type guards", () => {
       let result: boolean | Promise<Foo>
       if ((result = validate(data))) {
         if (typeof result == "boolean") {
-          data.foo.should.equal(1)
+          ;(data as any).foo.should.equal(1)
         } else {
           await result.then((_data) => _data.foo.should.equal(1))
         }