Remove TRAMP's prefix when running tests

[MasWag]

This update allows bats-mode to run tests on remote files accessed via TRAMP. I manually tested and confirmed that Bats runs over SSH using TRAMP.

Changes:

• Added bats-remove-tramp-prefix to handle TRAMP file paths in bats-mode, enabling remote test execution.
• Modified bats-run and bats-run-current-test to utilize this function, ensuring compatibility with TRAMP.