upgrade to cordis v3 (#733)

Co-authored-by: panda <panda_dtdyy@outlook.com>

packages/hydrooj/src/loader.ts

@@ -34,7 +34,6 @@ export function resolveConfig(plugin: any, config: any) {
     if (schema && plugin['schema'] !== false) config = schema(config);
     return config;
 }
-Context.service('loader');
 
 const timeout = Symbol.for('loader.timeout');
 const showLoadTime = argv.options.showLoadTime;
@@ -43,7 +42,7 @@ export class Loader {
     static readonly Record = Symbol.for('loader.record');
 
     public app: Context;
-    public config: Context.Config;
+    public config: {};
     public suspend = false;
     public cache: Record<string, string> = Object.create(null);
 
@@ -147,8 +146,8 @@ export function addScript(name: string, description: string) {
     };
 }
 
-Context.service('loader');
 const loader = new Loader();
+app.provide('loader');
 app.loader = loader;
 loader.app = app;
 app.state[Loader.Record] = Object.create(null);