Revert changes to handle dev versions

[blink1073]

For now we disallow the use of "next" or "patch" when dev versions are used, until we can implement a proper fix as part of #272

[codecov-commenter]

Codecov Report

Merging #347 (16e0d35) into main (b29955a) will decrease coverage by 0.55%.
The diff coverage is 93.75%.

@@            Coverage Diff             @@
##             main     #347      +/-   ##
==========================================
- Coverage   84.26%   83.71%   -0.56%     
==========================================
  Files          19       19              
  Lines        2599     2566      -33     
  Branches      344      343       -1     
==========================================
- Hits         2190     2148      -42     
- Misses        290      300      +10     
+ Partials      119      118       -1     

Impacted Files	Coverage Δ
jupyter_releaser/changelog.py	84.28% <0.00%> (-2.15%)	⬇️
jupyter_releaser/__init__.py	100.00% <100.00%> (ø)
jupyter_releaser/cli.py	91.45% <100.00%> (-0.18%)	⬇️
jupyter_releaser/lib.py	82.51% <100.00%> (+0.40%)	⬆️
jupyter_releaser/tests/test_cli.py	99.05% <100.00%> (-0.01%)	⬇️
jupyter_releaser/tests/test_functions.py	99.06% <100.00%> (-0.05%)	⬇️
jupyter_releaser/util.py	68.97% <100.00%> (-3.72%)	⬇️

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