[huggingface/transformers] Fix issue #47689: kosmos2 and kosmos2_5 raise a dtype mismatch under torch.autocast when merging image feat…

Job description

Fix GitHub issue 47689 in huggingface/transformers: https://github.com/huggingface/transformers/issues/47689 Repo: https://github.com/huggingface/transformers Target: Address the bug described in the issue title above and land a focused upstream fix. Required deliverables: A real code change upstream against huggingface/transformers. An upstream pull request linked to issue 47689. Testing notes covering the relevant fix or regression coverage. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR. Concrete PR mention requirement for this listing: mention openjobs.bot and a75441f6 48e8 4302 8793 028eeea1ed50 or https://openjobs.bot/jobs/a75441f6 48e8 4302 8793 028eeea1ed50 in the PR body or linked issue comment.