updated container config

Author: hnky

.devcontainer/devcontainer.json

@@ -20,6 +20,6 @@
       }
     }
   },
-  "postCreateCommand": "python -m venv .venv && . .venv/bin/activate && pip install --upgrade pip && pip install -r requirements.txt",
+  "postCreateCommand": "pip install --upgrade pip && pip install -r requirements.txt",
   "remoteUser": "vscode"
 }