* Run builds when changes are pushed to the main branch, or for pull
  requests opened against the main branch. This is a subtle change
  in behavior because, previously, builds would've run on pushes to
  any branch, regardless if a pull request is open yet.
* Update to GitHub actions/checkout v2, which performs a shallow
  clone by default, and should speed up the build.

Closes: #2559

Cherry-pick dependencies with security issues to update.
Signed-off-by: NAkash Satheesan <akash@coder.com>

dev(update-vscode.sh): get latest vscode version and force commit files

docs(install): add termux section

Implement missing terminal method

docs(npm): update node requirements

add instructions for deploying to a cloud provider 

release: 3.9.1

chore: Remove pages/update.css

feat(vscode): update to version 1.53.2

Before this commit, if the tests fail then the artifacts don't get uploaded.
This makes it harder to debug failing e2e tests.

To prevent this, this commit adds an "if" condition which says always run this
step.

Source: https://stackoverflow.com/a/58859404/3015595

It appears the associated HTML for these styles was removed in
554b6d6f

docs(README, ci): add docs shield with link to version docs