Add workflow to release to Figshare on release

[christopher-wild]

The secret is already made.

The record is still private in my workspace until this workflow is tested so the first DOI is attached to the first push

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ PYTHON	black	26		0	0.89s
✅ PYTHON	pylint	26		0	4.4s

See detailed report in MegaLinter reports

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[codecov]

Codecov Report

Merging #247 (de1b5b0) into main (4bb55d9) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #247   +/-   ##
=======================================
  Coverage   95.32%   95.32%           
=======================================
  Files          20       20           
  Lines        1411     1411           
=======================================
  Hits         1345     1345           
  Misses         66       66           

---

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[f-allian]

Nice one Chris, thanks for your work on this - looks good.

[f-allian]

Also this technically closes issue #243

[christopher-wild]

Cheers! I'll close the issue once the workflow is tested :)!