Fix files fetching from osf

[me-pic]

Closes #485

Proposed Changes

• Change urllib to requests

Change Type

• [] bugfix (+0.0.1)
• minor (+0.1.0)
• major (+1.0.0)
• refactoring (no version update)
• test (no version update)
• infrastructure (no version update)
• documentation (no version update)
• other

Checklist before review

• I added everything I wanted to add to this PR.
• [Code or tests only] I wrote/updated the necessary docstrings.
• [Code or tests only] I ran and passed tests locally.
• [Documentation only] I built the docs locally.
• My contribution is harmonious with the rest of the code: I'm not introducing repetitions.
• My code respects the adopted style, especially linting conventions.
• The title of this PR is explanatory on its own, enough to be understood as part of a changelog.
• I added or indicated the right labels.

• I added information regarding the timeline of completion for this PR.

• Please, comment on my PR while it's a draft and give me feedback on the development!

[smoia]

@me-pic what was the problem with the previous implementation?
Please add requests in the setup.cfg file, section [extra requires] tests - otherwise the automated tests will fail!

[me-pic]

Thank for taking a look at the PR @smoia ! The problem with the previous implementation is detailed in issue #485 . Let me know if you are able to replicate it !

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.15%. Comparing base (63c3d83) to head (e3eff0a).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #486   +/-   ##
=======================================
  Coverage   91.15%   91.15%           
=======================================
  Files           8        8           
  Lines        1006     1006           
=======================================
  Hits          917      917           
  Misses         89       89           

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[smoia]

LGTM!!!

[welcome]

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