Copy existing file mode to new object

[cooperbenson-qz]

Expected Behavior

FIle permissions are preserved

Current Behavior

Right now all files are committed with mode 100644 which means files will lose executable permissions if they have them locally or remotely.

Possible Solution

Steps to Reproduce (for bugs)

N/A

Context

This is a TODO from initial implementation that was blocking due to a typescript bug

Your Environment

• Version used: any
• Runner version: ubuntu
• Variables:
  • N/A