ci: update build image version used in tests

[reubenmiller]

Updating the image version to use the latest demo container.

Tests and dependencies have also been updated to align with the latest release.

[github-actions]

Robot Results

✅ Passed	❌ Failed	⏭️ Skipped	Total	Pass %
8	0	0	8	100

Passed Tests

Name	⏱️ Duration	Suite
Install node-red from github url	9.113 s	Management
Install node-red from tarball	2.8369999999999997 s	Management
Uninstall node-red project via Cumulocity	6.795 s	Management
Uninstall node-red project via Cumulocity using the active project	11.713 s	Management
Install new project when nodered is not running	13.626 s	Management
Install node-red from github url with space in its name	11.388 s	Management
node-red project should be running and processing thin-edge telemetry	4.914 s	Telemetry
node-red status should publish to health endpoint	0.111 s	Telemetry