Mock biocontainers and anaconda api calls in module tests

[mirpedrol]

Mock biocontainers and anaconda api calls to make tests faster.
Related to #1697

PR checklist

• This comment contains a description of changes (with reason)
• CHANGELOG.md is updated
• If you've fixed a bug or added code that should be tested, add tests!
• Documentation in docs is updated

[codecov]

Codecov Report

Merging #1967 (4d675bd) into dev (81af6b7) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev    #1967   +/-   ##
=======================================
  Coverage   61.13%   61.13%           
=======================================
  Files          37       37           
  Lines        4678     4678           
=======================================
  Hits         2860     2860           
  Misses       1818     1818           

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[apeltzer]

Love it :-) Locally tested the branch and its quite a bit faster and good that we do not depend on the API being online all the time 😓