fix(conda): add support pip deps for environment.yml files

[DmitriyLewen]

Description

Conda supports installing dependencies using pip - https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#using-pip-in-an-environment
In these cases - dependency is map.
e.g.:

name: test-environment
dependencies:
  - python==3.10.*
  - pip==23.2.*
  - scikit-learn==1.3.*
  - pip:
    - pandas==2.1.*

Add maps parsing from Dependencies.

Related issues

• Close bug(conda): pip dependencies are not supported in new Conda integration #6659

Related PRs

• feat: add support environment.yaml files #6569

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).

[DmitriyLewen]

(myenv) root@ccc79e13e62e:/app# cat environment.yml 
name: myenv2
channels:
  - defaults
dependencies:
  - wheel=0.43.0=py312hd43f75c_0
  - xz=5.4.6=h998d150_1
  - pip: asgiref==3.8.1
prefix: /opt/conda/envs/myenv

(myenv) root@ccc79e13e62e:/app# conda env create -f environment.yml
...

Pip subprocess error:
ERROR: Invalid requirement: '=' (from line 8 of /app/condaenv.c8eq_o_y.requirements.txt)
Hint: = is not a valid operator. Did you mean == ?

failed

CondaEnvException: Pip failed