Timesfm 2.5 (#41763)

* init

* initial modules

* initial model

* fix config

* compare

* rope embedding

* normalization

* fix scale

* add _scale_query

* revin

* get rid of magic numbers

* use configs

* scaling=1

* fix Timesfm2P5MLP

* normalization

* wip

* update for v5

* updated docs

* Delete convert_timesfm_2p5_orignal_to_hf.py

* fix copyright

* fix test

* fix import

* added MODEL_FOR_TIME_SERIES_PREDICTION_MAPPING_NAMES

* fix CI

* fix docstring

* add Timesfm2P5Model to check_repo.py

* download from hub and fix docs

* use transformers weights

* add back test_eager_matches_sdpa_inference

* add flash and flex attn support

* fix CI

* remove unused helper

* fix auto_docstring

* fix slow tests

* faster tests

* fix doc

* fix docs

* formatting

* add dates

* require_flash_attn

* fix from review

* added Gemma2DecoderLayer

* fixes from reviewer

* fix repo

* fix year

* fix formatting

* Update docs/source/en/model_doc/timesfm_2p5.md

Co-authored-by: Anton Vlasjuk <[email protected]>

* Update src/transformers/models/timesfm_2p5/modular_timesfm_2p5.py

Co-authored-by: Anton Vlasjuk <[email protected]>

* fixes from review

* use llama attnetion and rope

* use config and inherit from timesfm

* add comment and fix docstring

* remove docstring

* remove unused decorator

* remove attn_weights

* parent model and inherit it

* kwargs type

* remove return_forecast_on_context

* simplify

* removed unneeded test

* fix reason

* fix CI

* fix repo

* fix-repo

* fix-repo

* fix CI

* fix float

* remove true only configs

* Update tests/models/timesfm_2p5/test_modeling_timesfm_2p5.py

Co-authored-by: Anton Vlasjuk <[email protected]>

* Update src/transformers/models/timesfm_2p5/modular_timesfm_2p5.py

Co-authored-by: Anton Vlasjuk <[email protected]>

* intial broken rename

* rename classes and config

* fix test

* fix formatting

* update timesfm 2.5 release date

* remove query_pre_attn_scalar and rope_theta

* small fixups

* fix run_slow test on gpu

* lets add a revision

* fix parallel test

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Co-authored-by: Anton Vlasjuk <[email protected]>
Co-authored-by: vasqu <[email protected]>