Cleanup @ember/service deprecation (#1095)

In ember v6.3 there was added deprecation for service import from inject https://deprecations.emberjs.com/id/importing-inject-from-ember-service/

This changes allows us to hold support for ember-source <= 4.0 and removes deprecation in newer versions

Author: mkszepp

Diff for: ember-file-upload/src/components/file-dropzone.ts

@@ -1,5 +1,5 @@
 import Component from '@glimmer/component';
-import { inject as service } from '@ember/service';
+import * as s from '@ember/service';
 import { getOwner } from '@ember/application';
 import DataTransferWrapper from '../system/data-transfer-wrapper.ts';
 import { action } from '@ember/object';
@@ -14,6 +14,8 @@ import {
 } from '../interfaces.ts';
 import DragListenerModifier from '../system/drag-listener-modifier.ts';
 
+const service = s.service ?? s.inject;
+
 /**
   `FileDropzone` is a component that will allow users to upload files by
    drag and drop.

Diff for: ember-file-upload/src/helpers/file-queue.ts

@@ -1,11 +1,13 @@
 import Helper from '@ember/component/helper';
 import { registerDestructor } from '@ember/destroyable';
-import { inject as service } from '@ember/service';
+import * as s from '@ember/service';
 import type { UploadFile } from '../upload-file.ts';
 import type FileQueueService from '../services/file-queue.ts';
 import { DEFAULT_QUEUE } from '../services/file-queue.ts';
 import type { FileQueueSignature, QueueListener } from '../interfaces.ts';
 
+const service = s.service ?? s.inject;
+
 /**
  * `file-queue` helper is one of the core primitives of ember-file-upload.
  *