[CRYSTAL] object_id method should be a reserved words

[n-rodriguez]

Fix #22563

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[n-rodriguez]

It's not perfect but with all this patches I can consume Netbox API :

• fetching data from all GET endpoint : https://github.com/jbox-web/netbox-extractor/blob/master/src/netbox_extractor/controllers/test_api/get.cr
• creating some objects : https://github.com/jbox-web/netbox-extractor/blob/master/src/netbox_extractor/controllers/test_api/post.cr

The generated client is here : https://github.com/jbox-web/netbox-extractor/tree/master/vendor/netbox-client.4.4.8

[n-rodriguez]

Also the Pet store sample is a bit light to exercise all the models : for instance no AnyOf module/class is generated 😢

Maybe using a subset of Netbox API / schema (which is a real world example) would help to better test the generator?

Merry Christmas! 🎅