Adding the miniforge installer for conda

[mikibonacci]

This installer is needed to install conda on local/remote computer which does not have it, or only have Anaconda (for license reason, we don't want/cannot to use it). This, in principle, can be particularly useful if we want to automatically setup a python code from the aiidalab-qe app.

I basically added two object to the utils.py file:

• generate_bash_to_install_conda function
• CONDA_DEFAULT_PATH variable

the script strig to install conda is generated in the create_conda_env function if install_conda is True, and merged to the script used to create the conda env (we put the installer script first, in the sh file):

...
    script = generate_bash_to_create_python_env(name, pip, conda, modules, python_version, variables, shell)
    
    conda_path = conda.get("path", CONDA_DEFAULT_PATH)
    
    if install_conda:
        install_conda_script = generate_bash_to_install_conda(shell, destination=conda_path, modules=modules)
        script = install_conda_script + script
...

Moreover, now we can define the path: str k:v in the conda input dictionary. This is needed to define a common path where to install and then find conda.

Missing:

• pre-commit checks
• detect the architecture and download the correct installer, as well as using the correct cmd instructions
• test(s)
• documentation/guide

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 24.00000% with 19 lines in your changes missing coverage. Please review.

Project coverage is 85.50%. Comparing base (839e3ba) to head (fb0d6ac).

Files with missing lines	Patch %	Lines
src/aiida_pythonjob/utils.py	24.00%	19 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #14      +/-   ##
==========================================
- Coverage   87.88%   85.50%   -2.39%     
==========================================
  Files          14       14              
  Lines         652      676      +24     
==========================================
+ Hits          573      578       +5     
- Misses         79       98      +19     

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