Bug report

Bug description:

This means the error path is never taken if something goes wrong with tuple.

CPython versions tested on:

3.15, CPython main branch

Operating systems tested on:

macOS

Linked PRs

• gh-142724: fix error path in _PyPegen_raise_tokenizer_init_error #142725
• [3.14] gh-142724: fix error path in _PyPegen_raise_tokenizer_init_error (GH-142725) #142726
• [3.13] gh-142724: fix error path in _PyPegen_raise_tokenizer_init_error (GH-142725) #142727