chore: include *.tests.js in jest

Author: mikechu-optimizely

jest.config.js

@@ -2,7 +2,7 @@ module.exports = {
   "transform": {
     "^.+\\.(ts|tsx|js|jsx)$": "ts-jest",
   },
-  "testRegex": "(/tests/.*|(\\.|/)(test|spec))\\.tsx?$",
+  "testRegex": "(/tests/.*|(\\.|/)(test|spec|tests))\\.tsx?$",
   moduleNameMapper: {
     // Force module uuid to resolve with the CJS entry point, because Jest does not support package.json.exports. See https://github.com/uuidjs/uuid/issues/451
     "uuid": require.resolve('uuid'),