[BUG] Numpy version

[mmorris44]

Describe the bug

Numpy version needs fixing.

To Reproduce

Steps to reproduce the behaviour:

1. make build version=jax-core
2. make bash version=jax-core
3. python examples/jax/debugging/simple_spread/feedforward/decentralised/run_mappo.py
4. See first error printed: RuntimeError: module compiled against API version 0xf but this version of numpy is 0xe

Expected behavior

Error should ideally not appear.

Context (Environment)

• On Mac, but in Docker

Proposal for a fix

Seems to arise from conflicting versions of numpy installed during mava build. Need to pin down to one version. Our version does not match with dm-acme's version, but their version has other problems.

Definition of done

Error no longer appearing and example running fine. CI tests passing.

Mandatory checklist before making a PR

• [ ] The success criteria laid down in “Definition of done” are met.
• [ ] Code is documented - docstrings for methods and classes, static types for arguments.
• [ ] Code is tested - unit, integration and/or functional tests are added.
• [ ] Documentation is updated - README, CONTRIBUTING, or other documentation.
• [ ] All functional tests are green.
• [ ] Link experiment/benchmarking after implementation (optional).