Co-authored-by: NAkash Satheesan <akash@coder.com>

Co-authored-by: NAkash Satheesan <akash@coder.com>

Co-authored-by: NAkash Satheesan <akash@coder.com>

* chore: update CHANGELOG

* fix: use openFolder in welcomePage

In 1.56.2, they modified the WelcomePage use of OpenFileFolder in
src/vs/workbench/contrib/debug/browser/welcomeView.ts to only use on macOS +
Desktop (i.e. not Web). This caused the "Open Folder" to not work on macOS +
macOS-like environments.

Instead, we use OpenFolder which is a registered command and works as expected.

New extraInitContainers configuration added.
It allows to pass template with a list of containers to execute before
main code-server container started. Main container will only start when
all init containers are  completed (exited with 0 code).

 Additionally changes the way extraContainers is used - instead of
 toYaml use tpl, because this allows to
 reference any values from extraContainers string.

* Update versions
* Update changelog

This ensures the link is correct. Should fix #3355.

Microsoft publishes updates to this action using the same scheme
as GitHub, where the v1 tag is updated to the latest release of
the 1.0 series. Therefore, we can manage updates manually.