Upgrade to use typescript instead of javascript and use game-ci images

* Upgrade to using typescript instead of javascript and use game-ci images instead of gableroux images

* Fix errors

* Update bash script

* Fix test

* Remove test

* Add versioning

* Update husky

* Update husky

* Update husky

* Update package.json

* Update husky and image-tag

* Use 'yarn lint-staged' instead of 'npx lint-staged'

* Update entrypoint.sh

src/model/input.test.ts

@@ -0,0 +1,18 @@
+import * as core from '@actions/core';
+
+import Input from './input';
+
+describe('Input', () => {
+  describe('unityVersion', () => {
+    it('returns the default value', () => {
+      expect(Input.unityVersion).toStrictEqual('2019.2.11f1');
+    });
+
+    it('takes input from the users workflow', () => {
+      const mockValue = '2020.4.99f9';
+      const spy = jest.spyOn(core, 'getInput').mockReturnValue(mockValue);
+      expect(Input.unityVersion).toStrictEqual(mockValue);
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+  });
+});