[fix] Update torch version in cpu-build.txt for AArch64/ppc64le and Darwin

[fadara01]

[fix] Update torch version in cpu-build.txt for AArch64/ppc64le and Darwin

Purpose

Update torch version in cpu-build.txt to match that in cpu.txt
This fixes AArch64 build failures: #25578

Test Plan

pip install -r vllm/requirements/cpu-build.txt
VLLM_TARGET_DEVICE=cpu python3 setup.py bdist_wheel

Test Result

Build Passes on AArch64, before this it used to fail, see #25578

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[gemini-code-assist]

Code Review

This pull request updates the torch version for AArch64 in requirements/cpu-build.txt to fix a build failure. While the change correctly addresses the issue for AArch64, it introduces a regression by removing the torch dependency for other platforms like macOS (Darwin). My review includes a suggestion to add back the torch dependency for Darwin to ensure build compatibility across all supported platforms.

[fadara01]

cc: @nikhil-arm