Fixed Interpolated Distribution's interval transform initialization

[kc611]

Linked Issue: #5048

[codecov]

Codecov Report

Merging #5067 (7bbbec4) into main (99ec0ff) will decrease coverage by 0.93%.
The diff coverage is 42.85%.

❗ Current head 7bbbec4 differs from pull request most recent head b040aa4. Consider uploading reports for the commit b040aa4 to get more accurate results

@@            Coverage Diff             @@
##             main    #5067      +/-   ##
==========================================
- Coverage   78.94%   78.00%   -0.94%     
==========================================
  Files          88       88              
  Lines       14248    14132     -116     
==========================================
- Hits        11248    11024     -224     
- Misses       3000     3108     +108     

Impacted Files	Coverage Δ
pymc/distributions/continuous.py	95.12% <42.85%> (-1.46%)	⬇️
pymc/gp/gp.py	60.25% <0.00%> (-33.36%)	⬇️
pymc/gp/util.py	80.00% <0.00%> (-14.69%)	⬇️
pymc/distributions/simulator.py	86.25% <0.00%> (-0.51%)	⬇️
pymc/math.py	68.18% <0.00%> (-0.51%)	⬇️
pymc/bart/bart.py	95.45% <0.00%> (-0.47%)	⬇️
pymc/distributions/distribution.py	94.53% <0.00%> (-0.18%)	⬇️
pymc/distributions/logprob.py	94.93% <0.00%> (-0.11%)	⬇️
pymc/distributions/multivariate.py	71.27% <0.00%> (-0.07%)	⬇️
... and 14 more

[ricardoV94]

Looks good, but we should add a regression test

[ricardoV94]

@kc611 I updated the PR. Let me know if you see any problems

[kc611]

Looks Good. Back then I was confused as of what tests to add. This looks pretty reasonable.