Remove transformers upper bound constraint in macOS requirements

[Copilot]

Upper bound constraint transformers>=4.35.0,<4.57.0 in requirements_macos.txt conflicts with heartlib's dependencies, preventing pip from resolving a compatible version tree.

Changes

• requirements_macos.txt: Remove <4.57.0 upper bound, retain >=4.35.0 minimum

-# Transformers (constrain to avoid yanked 4.57.0)
-transformers>=4.35.0,<4.57.0
+# Transformers
+transformers>=4.35.0

Allows pip to resolve transformers 4.57.0 which satisfies both explicit requirements and transitive dependencies from heartlib @ git+https://github.com/HeartMuLa/heartlib.git.

Original prompt

This pull request addresses a pip dependency conflict in the macOS build workflow of the HeartMuLa-Studio repository. The conflict arises from the explicit version constraints in the requirements_macos.txt file. Notably, the dependency transformers is pinned to the version range >=4.35.0,<4.57.0, which conflicts with other dependencies or with the heartlib package imported via git.

Proposed Fixes:

1. Loosen the transformers version constraints to transformers>=4.35.0. This ensures compatibility with other dependencies and allows pip to resolve a suitable version.
2. Verify all other package version constraints and update or remove redundant constraints if necessary.
3. Ensure that the updated requirements_macos.txt resolves all dependencies and builds correctly without conflicts.

Steps Taken:

1. Edited requirements_macos.txt to loosen the version constraint for transformers.
2. Reviewed all other dependencies in requirements_macos.txt to ensure no similar issues are present.
3. Verified that the changes resolve the conflict and maintain compatibility.

Please review the changes and provide feedback if further adjustments are required.

This pull request was created from Copilot chat.

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