[MNT] Add all_extras to our conda-forge release

[MatthewMiddlehurst]

Describe the issue

We release on conda-forge as well as PyPi. https://github.com/conda-forge/aeon-feedstock

Currently, there is no way to install optional dependencies as a set i.e. `all_extras. It would be good to have this functionality.

Feedstock issue: conda-forge/aeon-feedstock#1

Suggest a potential alternative/fix

No response

Additional context

No response

[RohitP2005]

Proposal to Add Optional Dependency Support for aeon on Conda-Forge

I'd like to work on adding support for optional dependencies for the aeon package on Conda-Forge, similar to pip install aeon[all_extras].

Possible Solutions

1. Meta-Packages: Create packages like aeon-all-extras that include all optional dependencies.
2. Multiple Outputs: Use Conda’s outputs feature in meta.yaml to define packages with different sets of dependencies.

Looking forward to your feedback!

[MatthewMiddlehurst]

Either solution would work. Whichever is more similar to our pip extras or is more commonly used/recommended by the community I guess.