[Colab] Demo Notebook Link to Download COLMAP is Broken

[UPstartDeveloper]

Describe the bug When running the cell to "Install Nerfstudio and Dependencies", the link to download COLMAP denies access.

!gdown "https://drive.google.com/u/0/uc?id=15WngFRNar_b8CaPR5R-hvQ3eAnlyk_SL&confirm=t"

To Reproduce Steps to reproduce the behavior:

1. Go to the demo notebook here - it's also linked in the README.
2. Connect to the GPU
3. Run the first cell with the header "Install Nerfstudio and Dependencies".
4. See error:

Access denied with the following error:

 	Cannot retrieve the public link of the file. You may need to change
	the permission to 'Anyone with the link', or have had many accesses. 

You may still be able to access the file from the browser:

	 https://drive.google.com/u/0/uc?id=15WngFRNar_b8CaPR5R-hvQ3eAnlyk_SL&confirm=t 

Expected behavior On this line in the cell, COLMAP should be downloaded:

!gdown "https://drive.google.com/u/0/uc?id=15WngFRNar_b8CaPR5R-hvQ3eAnlyk_SL&confirm=t"

Screenshots N/A

[yimingc]

+1. I cannot even download manually.

[brentyi]

This should be addressed by #2787