* add uv tooling for e2e gpu tests
* fixes from PR feedback
* simplify check
* fix env var
* make sure to use uv for other install
* use raw_dockerfile_image
* Fix import
* fix args to experimental dockerfile image call
* use updated modal versions
* lean mistral ft tests, remove e2e torch 2.4.1 test
* make sure to pass save_only_model for RL
* more tests to make ci leaner, add cleanup to modal ci
* fix module for import in e2e tests
* use mp spawn to prevent deadlocks with packing
* make sure cleanup shell script is executable when cloned out