Fix buildbox-e2e-base image path
Description
This PR fixes the path to the new buildbox-e2e-base
image. You can see an example of the failure this fixes here: https://gitlab.com/BuildGrid/buildgrid/-/jobs/3866489007
Validation
You can validate the original issue and the fix by following the instructions in the Dockerfile
section of the README.md to build and run the necessary images.
Edited by Jeremiah Bonney