Add github-cli.

Author: CodeMan99

.devcontainer.json

@@ -9,7 +9,8 @@
         }
     },
     "features": {
-        "ghcr.io/devcontainers/features/docker-in-docker:2": {}
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {},
+        "ghcr.io/devcontainers/features/github-cli:1": {}
     },
     "remoteUser": "node",
     "postCreateCommand": "npm install -g @devcontainers/cli"