fix: explicitly depend on tslib

[ibacher]

I'm trying to use this with Yarn's Plug'n'Play feature, which requires some explicitness about libraries. Since these libraries are build with "importHelpers": true, the resulting built code looks something like this (from build.js in @softarc/native-federation):

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
tslib_1.__exportStar(require("./src/build"), exports);

The attempt to use tslib without an explicit dependency on tslib in the package.json—it's a dependency of the monorepo—causes a Yarn error when trying to execute the require("tslib").

Thanks for all the work on this library!