fix(ci): migrate linux workflows to GitHub-hosted runners

[kgeg401]

Summary

• replace custom runner labels in linux CI, wheel, and nightly coverage workflows
• use ubuntu-latest for x64 jobs and ubuntu-24.04-arm for arm64 jobs
• keep existing manylinux/container build logic unchanged

Why

The workflows currently depend on custom labels (linux_x64, linux_arm64) that are not available on standard GitHub-hosted infrastructure, which blocks CI for contributors without self-hosted runners.

Validation

• verified all targeted workflow files now use GitHub-hosted runner labels
• preserved existing job steps and containers to keep runtime behavior consistent

Fixes #89

[Cuiyus]

For linux x86/arm64 & mac arm64 & nightly_coverage, we have migrated to the GitHub-hosted runner. Please follow #171 for updates.

Currently, running zvec on the github-hosted runner(linux_x64) will result in an illegal instruction. We speculate that the "illegal instruction" that occurred in #101 might be caused by the fact that the std::string compare within the std::map set was enabled for vectorization. We are currently trying to fix it.

Therefore, cibuildwheel (for releasing zvec Python version) will not be modified for now.

We plan to fix this issue in version v0.3.0. You can also follow #101 where the subsequent relevant fix solutions will be updated.