activate docker image scanning test

[ks6088ts]

What would you like to be added?

Failing CI tests repeatedly as follows:
https://github.com/ks6088ts-labs/workshop-azure-openai/actions/runs/10413651155/job/28841368586#step:4:1886

2024-08-16T02:34:42.003Z	FATAL	image scan error: scan error: scan failed: failed analysis: analyze error: pipeline error: failed to analyze layer (sha256:067693c93cf96e1757b12c3b57a46f0ef79e2499b4729c35a608bb2e915e64ee): unable to get uncompressed layer sha256:067693c93cf96e1757b12c3b57a46f0ef79e2499b4729c35a608bb2e915e64ee: failed to get the layer (sha256:067693c93cf96e1757b12c3b57a46f0ef79e2499b4729c35a608bb2e915e64ee): unable to populate: unable to open: failed to copy the image: write /tmp/fanal-2721400208: no space left on device

For now, this test was disabled by the commit 05c4284

Why is this needed?

From the security point of view, it is important.