meta: update devcontainer to the latest schema

PR-URL: https://github.com/nodejs/node/pull/54347
Reviewed-By: James M Snell <jasnell@gmail.com>

.devcontainer.json

@@ -0,0 +1,25 @@
+{
+  "name": "Node.js Core Developer Environment",
+  "runArgs": [
+    "--platform=linux/amd64"
+  ],
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "github.vscode-pull-request-github",
+        "ms-vsliveshare.vsliveshare",
+        "vscode-icons-team.vscode-icons",
+        "visualstudioexptteam.vscodeintellicode"
+      ],
+      "settings": {
+        "terminal.integrated.profiles.linux": {
+          "zsh (login)": {
+            "path": "zsh",
+            "args": ["-l"]
+          }
+        }
+      }
+    }
+  },
+  "image": "nodejs/devcontainer:nightly"
+}

.devcontainer/devcontainer.json

@@ -1,18 +0,0 @@
-{
-  "name": "Node.js Core Developer Environment",
-  "extensions": [
-    "github.vscode-pull-request-github",
-    "ms-vsliveshare.vsliveshare",
-    "vscode-icons-team.vscode-icons",
-    "visualstudioexptteam.vscodeintellicode"
-  ],
-  "image": "nodejs/devcontainer:nightly",
-  "settings": {
-    "terminal.integrated.profiles.linux": {
-      "zsh (login)": {
-        "path": "zsh",
-        "args": ["-l"]
-      }
-    }
-  }
-}

.gitignore

@@ -7,8 +7,7 @@
 .*
 # Exclude specific dotfiles that we want to track.
 !deps/**/.*
-!.devcontainer/
-!.devcontainer/.devcontainer.json
+!.devcontainer.json
 !test/fixtures/**/.*
 !.clang-format
 !.cpplint