Pinning dm-haiku to 0.0.10

[jonas-eschmann]

I was trying to run the examples/baselines/rl_continuous/run_sac.py example and ran into the following issue (trying multiple versions of python3 in clean virtual environments):

>>> from acme.agents.jax.d4pg import learning
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/agents/jax/d4pg/__init__.py", line 17, in <module>
    from acme.agents.jax.d4pg.builder import D4PGBuilder
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/agents/jax/d4pg/builder.py", line 24, in <module>
    from acme.agents.jax import actor_core as actor_core_lib
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/agents/jax/actor_core.py", line 21, in <module>
    from acme.jax import networks as networks_lib
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/jax/networks/__init__.py", line 17, in <module>
    from acme.jax.networks.atari import AtariTorso
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/jax/networks/atari.py", line 27, in <module>
    from acme.jax.networks import base
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/jax/networks/base.py", line 23, in <module>
    from acme.jax import utils as jax_utils
  File "/data/venvs/acme/lib/python3.8/site-packages/acme/jax/utils.py", line 27, in <module>
    import haiku as hk
  File "/data/venvs/acme/lib/python3.8/site-packages/haiku/__init__.py", line 19, in <module>
    from haiku import data_structures
  File "/data/venvs/acme/lib/python3.8/site-packages/haiku/data_structures.py", line 18, in <module>
    from haiku._src.data_structures import to_haiku_dict
  File "/data/venvs/acme/lib/python3.8/site-packages/haiku/_src/data_structures.py", line 30, in <module>
    from haiku._src import utils
  File "/data/venvs/acme/lib/python3.8/site-packages/haiku/_src/utils.py", line 42, in <module>
    def auto_repr(cls: type[Any], *args, **kwargs) -> str:
TypeError: 'type' object is not subscriptable

The same issue seems to exist in the Acme quickstart Colab notebook as well. In both cases, I was able to fix it by pinning dm-haiku==0.0.10. dm-haiku 0.0.11 has been released a couple of days ago so I guess it would be better to pin to 0.0.10 for now so that new users are able to run the examples and the Colab notebook.

[JeanElsner]

I can confirm this and would appreciate a merge, as figuring out the dependencies can be somewhat of a daunting task for new users.
However, version 0.0.10 of dm-haiku actually requires jax version >= 0.4.13 compared to acme's 0.4.3. In practice this is not an issue though. dm-haiku version 0.0.9 also works, but that version pins jax to 0.3.16. Ultimately I suspect this is only a short-term fix that only compounds the problem by pinning another dependency version.