feat(ember-simple-auth): implement internal EventTarget

[BobrImperator]

• Reimplements Remove Evented mixin. Use native EventTarget.  #2875
  The previous PR removed Evented mixin that was used by the classes directly - which is a nice improvement and allows full conversion to native classes.
• Changes test app to refer to ember-simple-auth as workspace:* instead of a version.
• Refactors ember runloop inline bind when providing methods to event listeners, to decorating methods directly

Unfortunately extending from the native EventTarget such as class MyClass extends EventTarget fails under fastboot and presumably when typescript's involved too. The #2875 seemed to work fine unless typescript was involved.
The issue isn't related to the typescript-event-target package that was introduced instead of Evented.

Maybe our Fastboot & Typescript herald @mansona would know more?

Some error details after running pnpm -F test-app test:one ember-4.0 on exp branch which still contains changes from #2875 and introduces Typescript to a test-app project.
master...exp

Built project successfully. Stored in "/tmp/tests-dist-20241128-528226-paejhx.luctg".
webpack://ember_auto_import/../ember-simple-auth/dist/index-B7bj3ruc.js?:5
var e=class extends EventTarget{dispatchTypedEvent(s,t){return super.dispatchEvent(t);}};
^

ReferenceError: EventTarget is not defined
at eval (webpack://ember_auto_import/../ember-simple-auth/dist/index-B7bj3ruc.js?:5:7)
at Module.../ember-simple-auth/dist/index-B7bj3ruc.js (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.tmp_broccoli-528226IU5dTQgKbam2_cache-370-webpack_bundler_ember_auto_import_webpack_app_cjs-t-c22a03.d212ee7a3f9e690f2962.js:84:1)
at webpack_require (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.app.77ba3811edadbb926032.js:164:42)
at eval (webpack://ember_auto_import/../ember-simple-auth/dist/session-stores/base.js?:8:76)
at Module.../ember-simple-auth/dist/session-stores/base.js (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.tmp_broccoli-528226IU5dTQgKbam2_cache-370-webpack_bundler_ember_auto_import_webpack_app_cjs-t-c22a03.d212ee7a3f9e690f2962.js:139:1)
at webpack_require (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.app.77ba3811edadbb926032.js:164:42)
at eval (webpack://ember_auto_import/../ember-simple-auth/dist/session-stores/ephemeral.js?:6:66)
at Module.../ember-simple-auth/dist/session-stores/ephemeral.js (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.tmp_broccoli-528226IU5dTQgKbam2_cache-370-webpack_bundler_ember_auto_import_webpack_app_cjs-t-c22a03.d212ee7a3f9e690f2962.js:161:1)
at webpack_require (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.app.77ba3811edadbb926032.js:164:42)
at eval (webpack://ember_auto_import/../ember-simple-auth/dist/initializers/setup-session.js?:15:86)
at Module.../ember-simple-auth/dist/initializers/setup-session.js (/tmp/tests-dist-20241128-528226-paejhx.luctg/assets/chunk.tmp_broccoli-528226IU5dTQgKbam2_cache-370-webpack_bundler_ember_auto_import_webpack_app_cjs-t-c22a03.d212ee7a3f9e690f2962.js:106:1)

[github-actions]

Some tests with 'continue-on-error: true' have failed:

• test-app test:one ember-beta

• test-app test:one ember-canary

• classic-test-app test:one ember-canary

• classic-test-app test:one ember-beta

  Created by continue-on-error-comment