[run_translation.py] fix typo
Author: johnson7788
Pull request: yes

line 380: forced less a letter r:   model.config.foced_bos_token_id = forced_bos_token_id  -->  model.config.forced_bos_token_id = forced_bos_token_id

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## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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