feat: add csharp sdk to dockerfile (#929)

* feature: add csharp sdk to dockerfile

* Update docker-compose.yml

* Update Dockerfile

* remove env file

---------

Co-authored-by: Yudong Jin <krahets@163.com>

codes/docker-compose.yml

@@ -1,7 +1,12 @@
 version: '3.8'
 services:
   hello-algo-code:
-    build: .
+    build:
+      context: .
+      args:
+        # 设置需要安装的语言，使用空格隔开
+        # Set the languages to be installed, separated by spaces
+        LANGS: "python cpp csharp"
     image: hello-algo-code
     container_name: hello-algo-code
     stdin_open: true