Checkout Path outside $GITHUB_WORKSPACE

[ijas-m]

Hi,
Please make the checkout to use path outside the $GITHUB_WORKSPACE.

Currently there is an issue when using:
Error: Repository path '<path_outside>' is not under '<$GITHUB_WORKSPACE>'

This is required since repo the $GITHUB_WORKSPACE might be very long for some build tools in Windows.
Without this path, we have to copy everything to new path from $GITHUB_WORKSPACE, which is wasting time and resources.