fix(GenerateBlurhashMetadata): Suppress imagescale errors

[umgfoin]

• Resolves: #

Summary

Suppress errors in GenerateBlurhashMetadata::resizedImageFromFile(...) imagescale during file-scans:
Most of these errors are caused by out of range x/y-dims.

Triggering un unhandled exception, metadata-generation aborts at this point (e.g. occ files:scan --generate-metadata), effectively preventing these images from being added to photos or maps.

This problem might be the root cause for an issue described in nextcloud/photos#2768).

TODO

• ...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[provokateurin]

@umgfoin we use a rebase workflow, so please don't merge the master branch into your branch (and it's really not necessary unless there are conflicts which is very unlikely with such a small change). You need to format your commit message according to https://www.conventionalcommits.org/en/v1.0.0/, so something like fix(GenerateBlurhashMetadata): Suppress imagescale errors .

[provokateurin]

/backport to stable31

[provokateurin]

/backport to stable30

[provokateurin]

/backport to stable29

[provokateurin]

@skjnldsv can you approve and force-merge? Cypress doesn't need to run for this change.

[welcome]

Thanks for your first pull request and welcome to the community! Feel free to keep them coming! If you are looking for issues to tackle then have a look at this selection: https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22

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