The VSCode extension does not download requirements when opening a project

[hugocaillard]

Context

Clarinet requirements should be downloaded in the .cache directory so that the LSP can check for errors the project.
A few things can trigger the download of the requirements, such as clarinet check or console.
Opening a clarinet project in VSCode (with the extension) should also automatically download it.

Bug

The extension doen't download the requirements and instead silently fails.
It used to work in the past

Solution

Bring back requirements deployment on project opening