Refactor action to typescript (#226)

* Refactor to typescript (config part)

* Refactor to typescript (convert extensions, minor fixes)

* Refactor to typescript (move from `action` to `dist`)

* Re-enable integrity-check for dist index.js

* Fix all tests and lints

* fix parsing major versions

* Test patch level to be digits only

* debug

* debug

* uncache

* manual compile

* debug

* debug

* Debug

* Build lib - doh

* remove diff check

* Make kubernetes workflow manual

* Properly generate 3 digit for simple major tags

* Remove ts-ignore

* re-enable cache

src/model/error/validation-error.test.ts

@@ -0,0 +1,14 @@
+import ValidationError from './validation-error';
+
+describe('ValidationError', () => {
+  it('instantiates', () => {
+    expect(() => new ValidationError()).not.toThrow();
+  });
+
+  test.each(['one'])('Displays title %s', (message) => {
+    const error = new ValidationError(message);
+
+    expect(error.name).toStrictEqual('ValidationError');
+    expect(error.message).toStrictEqual(message.toString());
+  });
+});