fix: add arch to cached path

[pengx17]

Description:
The existing node cache key does not take architecture into consideration. However during npm/yarn/etc installing the dependencies may generate different binaries based on the current architecture. Thus if the workflow has matrix that spawn different jobs on different architectures for the same platform may consume the same cache, which might be wrong.

This PR adds the arch to the cached key.

Related issue:
Add link to the related issue.

Check list:

• Mark if documentation changes are required.
• Mark if tests were added or updated to cover the changes.

Hello,
This pull request fixes the issue described in issue by adding the architecture to the cache key. I tested this change on my repository and it works fine.
Do you know when this pr will be merged ?
Thanks to @pengx17 for his work

Hello @pengx17, Could you please update the line os.platform() with process.env.RUNNER_OS to maintain the existing value of process.env.RUNNER_OS for better consistency and clarity with the runner name.

Hello @pengx17, a gentle follow up to update the line os.platform() with process.env.RUNNER_OS to maintain the existing value of process.env.RUNNER_OS for better consistency and clarity with the runner name.

Hello @pengx17, a gentle follow up to update the line os.platform() with process.env.RUNNER_OS to maintain the existing value of process.env.RUNNER_OS for better consistency and clarity with the runner name.

Sorry, just noticed the message. Done