core 1.4.4 locks the vm2 package to '3.9.3'

.devcontainer/Dockerfile

@@ -0,0 +1,16 @@
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.191.0/containers/javascript-node/.devcontainer/base.Dockerfile
+
+# [Choice] Node.js version: 16, 14, 12
+ARG VARIANT="14-buster"
+FROM --platform=linux/amd64 mcr.microsoft.com/vscode/devcontainers/javascript-node:0-${VARIANT}
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+# [Optional] Uncomment if you want to install an additional version of node using nvm
+# ARG EXTRA_NODE_VERSION=10
+# RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
+
+# [Optional] Uncomment if you want to install more global node modules
+RUN su node -c "npm install -g @openfn/devtools @openfn/core eslint prettier"

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.191.0/containers/javascript-node
+{
+  "name": "Node.js",
+  "build": {
+    "dockerfile": "Dockerfile",
+    // Update 'VARIANT' to pick a Node version: 12, 14, 16
+    "args": { "VARIANT": "14" }
+  },
+
+  "containerEnv": {
+    "GH_TOKEN": "${localEnv:GH_TOKEN}",
+  },
+
+  "mounts": [
+    "source=${localEnv:HOME}${localEnv:USERPROFILE}/.npmrc,target=/home/node/.npmrc,type=bind,consistency=cached"
+  ],
+
+  // Set *default* container specific settings.json values on container create.
+  "settings": {},
+
+  // Add the IDs of extensions you want installed when the container is created.
+  "extensions": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"],
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": "echo \"hello world\"",
+
+  // Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+  "remoteUser": "node"
+}