Cleanup

[jtpio]

• Fix handling of PYPI_TOKEN_MAP by moving it to a utility function and add test
• Fix typos in since_last_stable input handling
• Take advantage of tbump release to remove pin on tomlkit

[codecov-commenter]

Codecov Report

Merging #161 (aabc3e5) into master (1c4f9a2) will increase coverage by 0.48%.
The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master     #161      +/-   ##
==========================================
+ Coverage   84.99%   85.48%   +0.48%     
==========================================
  Files          17       17              
  Lines        2153     2163      +10     
  Branches      260      263       +3     
==========================================
+ Hits         1830     1849      +19     
+ Misses        232      221      -11     
- Partials       91       93       +2     

Impacted Files	Coverage Δ
jupyter_releaser/actions/publish_release.py	0.00% <0.00%> (ø)
jupyter_releaser/python.py	87.50% <75.00%> (-4.17%)	⬇️
jupyter_releaser/tests/test_cli.py	98.96% <75.00%> (-0.21%)	⬇️
jupyter_releaser/cli.py	90.80% <100.00%> (+0.03%)	⬆️
jupyter_releaser/lib.py	84.19% <100.00%> (+0.21%)	⬆️
jupyter_releaser/npm.py	79.71% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1c4f9a2...aabc3e5. Read the comment docs.

[blink1073]

Thanks!