Run the example app within workspace
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MR: Pending
## Description
We can create workspace that runs the `gitlab-web-ide` project, which allows for basic development such as running unit tests, creating a new branch, and committing changes. In order to do more testing, we would need to be able to run the Example App. The [Devfile configuration](https://gitlab.com/gitlab-org/gitlab-web-ide/-/blob/aacdb71018ba2a8421595f47dd41ca46e0c8f14b/.devfile.yaml) is set up so that it serves the example app on port `8000`. `yarn start:example` builds and starts the app.
Currently, running `yarn start:example` in the IDE terminal of the workspace results in an error due to node version incompatibility. The project's node version requirements are `^18.18.0 || >=20.0.0'`. The workspace uses node version `18.12.0` based on the container image specified.
## Acceptance Criteria
- [ ] In the Devfile, update container image such that it pulls the accepted node version. Cindy was able to run the example app successfully with node version `18.18.0`.
## Steps to reproduce
* Create [new workspace](https://gitlab.com/-/remote_development/workspaces/) for `gitlab-web-ide` project
* After workspace is successfully created, click on workspace link
* Open new terminal
* Run `yarn install`
* Run `yarn start:example`
* After node version requirement is met, should be able to start Example App by replacing the port in the workspace URL to `8000`. For example, if the workspace URL is `https://60001-workspace-1234.workspaces.gitlab.dev/`, Example App is served in `https://8000-workspace-1234.workspaces.gitlab.dev/`
issue