Patch release 4.54.1

We had quite a lot of bugs that got through! Release was a bit rushed, sorry everyone! 🤗 Mostly cache fixes, as we now have layered cache, and fixed to distributed.

• Fix Cache.max_cache_len max value for Hybrid models, @manueldeprada, @Cyrilvallez, #39737
• [modenbert] fix regression, @zucchini-nlp, #39750
• Fix version issue in modeling_utils.py, @Cyrilvallez, #39759
• Fix GPT2 with cross attention, @zucchini-nlp, #39754
• Fix mamba regression, @manueldeprada, #39728
• Fix: add back base model plan, @S1ro1, #39733
• fix cache inheritance, #39748
• Fix cache-related tests, @zucchini-nlp, #39676
• Fix Layer device placement in Caches, @Cyrilvallez, #39732
• PATCH: add back n-dim device-mesh + fix tp trainer saving, @S1ro1, @SunMarc, #39693
• fix missing model._tp_size from ep refactor, @winglian, #39688