feat: solvability implementation for rattler-build

[wolfv]

No description provided.

[wolfv]

Alright, this works! :) Will have to come up with some unsovlable ones for a test.

[beckermr]

The suppress_output() context needs to be added back in the correct spots.

[wolfv]

I restored the output supression. I think from my end this doesn't really need more work.

[beckermr]

Cool. A few more items.

• The print statements need to be changed to print_debug

• we need a test with an unsolvable recipe that shows what the output looks like.

[wolfv]

The error looks something like:

osx_arm64_: Rattler build errors: ╭─ Finding outputs from recipe
 │ Found 1 variants
 │ Build variant: v1-unsolvable-0.1-py100hfde170a_0
 │ 
 │ ╭─────────────────┬───────────╮
 │ │ Variant         ┆ Version   │
 │ ╞═════════════════╪═══════════╡
 │ │ python          ┆ 100       │
 │ │ target_platform ┆ osx-arm64 │
 │ ╰─────────────────┴───────────╯
 │
 ╰─────────────────── (took 0 seconds)

 ╭─ Resolving environments
 │ 
 │ Resolving environment for:
 │   Platform: osx-arm64
 │   Channels: 
 │    - file:///Users/wolfv/Programs/conda-forge/conda-forge-feedstock-check-solvable/output/
 │    - file:///var/folders/ls/nd2_c1qn1tz8c8sccxmg83m00000gn/T/tmppirjyobl/
 │    - conda-forge
 │    - file:///var/folders/ls/nd2_c1qn1tz8c8sccxmg83m00000gn/T/tmppirjyobl/
 │   Specs:
 │    - python 100.*
 │
 ╰─────────────────── (took 0 seconds)
Error:   × Failed to resolve dependencies: Cannot solve the request because of: No candidates were found for python 100.*.
  │ 
  ╰─▶ Cannot solve the request because of: No candidates were found for python 100.*.

I think that should be fine - wdyt?

[wolfv]

Also removed print statements / replaced with print_debug.