Fix CI

[ericpre]

Progress of the PR

• Pin towncrier to <24 until sphinxcontrib-towncrier supports towncrier >=24,
• fix broken link,
• make the oldest supported version are correctly installed,
• bump dask mininum requirement to align with hyperspy - convenience to simplify CI
• [n/a] update docstring (if appropriate),
• [n/a] update user guide (if appropriate),
• [n/a] add a changelog entry in the upcoming_changes folder (see upcoming_changes/README.rst),
• [n/a] Check formatting of the changelog entry (and eventual user guide changes) in the docs/readthedocs.org:rosettasciio build of this PR (link in github checks)
• [n/a] add tests,
• ready for review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.67%. Comparing base (e1fc1b0) to head (04e5aff).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #300   +/-   ##
=======================================
  Coverage   87.66%   87.67%           
=======================================
  Files          83       83           
  Lines       11149    11149           
  Branches     2414     2414           
=======================================
+ Hits         9774     9775    +1     
  Misses        860      860           
+ Partials      515      514    -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.