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

jest.config.js

@@ -1,9 +1,11 @@
-const esModules = ['lodash-es'].join('|');
-
 module.exports = {
+  clearMocks: true,
+  moduleFileExtensions: ['js', 'ts'],
   testEnvironment: 'node',
-  moduleFileExtensions: ['js', 'jsx', 'json', 'vue'],
-  transform: { '^.+\\.(js|jsx)?$': 'babel-jest' },
-  transformIgnorePatterns: [`/node_modules/(?!${esModules})`],
-  setupFilesAfterEnv: ['./src/jest.setup.js'],
+  testMatch: ['**/*.test.ts'],
+  testRunner: 'jest-circus/runner',
+  transform: {
+    '^.+\\.ts$': 'ts-jest',
+  },
+  verbose: true,
 };