Consider making tar preserve permissions, uid, and guid

Currently, tar is invoked as a regular user and without --preserve-permissions, and --same-owner. I wanted to cache some Docker volumes with action/cache and even after solving the permission issues with the Docker directories, I realized I needed --numeric-owner too as one of my Docker images were using uid:1000 without a corresponding user name on the host system. For these to work, tar also needs to be given s permission so it can set ownership information.

I created a custom action until (or if) this issue gets addressed but it is not ideal as it "wraps" the /usr/bin/tar binary to add these options.

I understand that these might be breaking changes so just adding an option for these would be great.

Begin by locating the tar invocation in the action/cache repository and reviewing how archive options are currently selected. Reproduce the Docker-volume case described here, then define and test behavior for permissions and numeric ownership, including the requested opt-in path and its interaction with existing cache compatibility.