Fix penguins and precipitation examples

[philippjfr]

Two small fixes to ensure the examples run.

[codecov-commenter]

Codecov Report

Merging #416 (98fe92a) into main (eaef7bf) will decrease coverage by 0.22%.
The diff coverage is 84.52%.

@@            Coverage Diff             @@
##             main     #416      +/-   ##
==========================================
- Coverage   68.51%   68.28%   -0.23%     
==========================================
  Files          73       73              
  Lines        8251     8419     +168     
==========================================
+ Hits         5653     5749      +96     
- Misses       2598     2670      +72     

Impacted Files	Coverage Δ
lumen/validation.py	87.50% <ø> (ø)
lumen/rest.py	24.34% <50.00%> (ø)
lumen/sources/intake_dremio.py	57.14% <50.00%> (ø)
lumen/ui/fast.py	73.33% <50.00%> (-3.53%)	⬇️
lumen/schema.py	57.41% <66.66%> (-0.20%)	⬇️
lumen/sources/base.py	63.20% <72.22%> (-0.04%)	⬇️
lumen/ui/state.py	70.83% <75.00%> (-4.78%)	⬇️
lumen/ui/views.py	41.08% <75.00%> (+0.58%)	⬆️
lumen/state.py	64.61% <77.04%> (-1.92%)	⬇️
lumen/dashboard.py	75.97% <79.48%> (-1.66%)	⬇️
... and 46 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.