[VS Code] Make it possible to publish a release on top of a pre-release

Problem

If we have a pre-release version of vscode extension published, and did not have any further version-bump commits (fix or feature commits) we cannot publish this version to the main stream.

Solution

We should adjust the publish-release::manual job so that if there's no version-bump commits, it automatically bumps a patch version and publishes this release to the main release stream.

Alongside this change we should update our release process documentation to highlight the importance of publishing a pre-release version of vscode extension first to minimise any potential negative effects on the end users