Tensorflow downgrade required for DLC

[samuelbray32]

Describe the bug
Building an environment from environment_dlc.yml did not initially allow for training.

Solution

pip install "tensorflow<=2.12"

See this issue on DLC

Other Relevant info

• Initial error when running led me here on tensorflow. Seems there's a known bug in the most recent release that should be fixed in future

• I'm not sure why DLC doesn't restrict the tensorflow dependency if it's a known requirement. Don't know if we want to pin it in the dlc yml or just leave this issue up as a solution for people

[edeno]

Let's just restrict for now and then remove it when it no longer becomes an issue.