feat: make object_id field case insensitive

[rpenido]

Description

Make object_id case-sensitive

Supporting Information

• Closes [Tagging] Make ObjectTag.object_id case-sensitive modular-learning#84

Testing instructions

• Please ensure that the tests cover the expected behavior of the view as described in the related issue.

After merge

• Create a Tag with the version v0.1.8

---

Private-ref: FAL-3508

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[ChrisChV]

@rpenido Looks good to me 👍

• I tested this: I read through the tests to make sure it covers the cases. I ran te migrations and test.
• I read through the code

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