Fix error in ctapipe-process in case telescope event is missing true image

[maxnoe]

Fixes #2344

[maxnoe]

Unfortunately, it's very hard to create a test case for this

[Tobychev]

As Konrad mentions in #2344, the proper solution is not really obvious as simply discarding the image from one telescope for a high energy event will discard a lot of potentially important information.

How do we best keep track of the need to properly handle this issue in the reconstructors? Open an issue against each existing method?

[maxnoe]

At least for now, we didn't encounter the problematic "event too bright for memory limits" case in prod6.

Only the non problematic "event very dim".

I'd process prod6 with this fix and then check the photo electron sums against the images with missing true images to check if we also need to worry about the "too bright case"

[maxnoe]

@kosack @Tobychev with the new test file, sonarqube now passes. Please have a look again

[ctao-dpps-sonarqube]

Analysis Details

1 Issue

• 0 Bugs
• 0 Vulnerabilities
• 1 Code Smell

Coverage and Duplications

• 94.30% Coverage (94.00% Estimated after merge)
• 0.00% Duplicated Code (0.70% Estimated after merge)

Project ID: cta-observatory_ctapipe_AY52EYhuvuGcMFidNyUs

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