Fix of custom streamer code

[sawenzel]

Fixing the custom streamer code for CalArray<o2::tpc::PadFlags> and resolving https://its.cern.ch/jira/browse/O2-6509

[github-actions]

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[sawenzel]

I am confident that with this we have finally fixed the problem related to https://its.cern.ch/jira/browse/O2-4671.

[ktf]

Ok, I take your word for it. Still it doesn't seem to fix the test_TPCCalDet. Is that a separate error?

[sawenzel]

test_TPCCalDet fails because of missing alien tokens (on some machines). That probably needs to be fixed on the CI servers.

[ktf]

Ok, thanks. @singiamtel can you look into the token issue?

[singiamtel]

Ok, thanks. @singiamtel can you look into the token issue?

It's a bug in the new alien.py, I've reported it upstream

[ktf]

@costing @adriansev can you have a look ASAP, please?