platformio-vscode-ide: Does not work in VS Code 1.72.3 or 1.73.0 insiders -- "Buffer() is deprecated due to security and usability issues"

Whenever PlatformIO is enabled in VS Code, I get the following error in the Developer Tools console, and the extension fails to load:

DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

I’ve looked thoroughly but cannot fix it.