Bump to 0.4.0

[guilyx]

Closes #80
Closes #81

[codecov]

Codecov Report

Merging #84 (7c23bca) into main (7f83a21) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #84   +/-   ##
=======================================
  Coverage   93.75%   93.75%           
=======================================
  Files          18       18           
  Lines        1008     1008           
=======================================
  Hits          945      945           
  Misses         63       63           

Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)
jupyddl/automated_planner.py	94.87% <100.00%> (ø)
jupyddl/node.py	97.82% <100.00%> (ø)
tests/test_node.py	100.00% <100.00%> (ø)

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