Fix error handling in tidy constructor

Fix memory leaks in ext-tidy

We must not instantiate the object prior checking error conditions
Moreover, we need to release the HUGE amount of memory for files which are over 4GB when t

Fix memory leaks in ext-tidy

We must not instantiate the object prior checking error conditions
Moreover, we need to release the HUGE amount of memory for files which are over 4GB when throwing a ValueError

Closes GH-10545

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