clean layers in YAML

[joamatab]

fixes https://github.com/gdsfactory/skywater130/issues/59

[sourcery-ai[bot]]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 2.12%.

Quality metrics	Before	After	Change
Complexity	0.03 ⭐	0.06 ⭐	0.03 👎
Method Length	1042.40 ⛔	766.75 ⛔	-275.65 👍
Working memory	4.21 ⭐	5.14 ⭐	0.93 👎
Quality	63.94% 🙂	61.82% 🙂	-2.12% 👎

Other metrics	Before	After	Change
Lines	1141	704	-437

Changed files	Quality Before	Quality After	Quality Change
sky130/config.py	67.02% 🙂	66.36% 🙂	-0.66% 👎
sky130/layers.py	61.54% 🙂	61.56% 🙂	0.02% 👍

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
sky130/layers.py	get_layer_stack	0 ⭐	354 ⛔	8 🙂	56.07% 🙂	Try splitting into smaller methods

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• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

---

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[codecov[bot]]

Codecov Report

Merging #60 (439bba3) into main (78b1456) will increase coverage by 0.00%. The diff coverage is 80.00%.

@@           Coverage Diff           @@
##             main      #60   +/-   ##
=======================================
  Coverage   80.19%   80.20%           
=======================================
  Files          20       20           
  Lines        5676     5677    +1     
=======================================
+ Hits         4552     4553    +1     
  Misses       1124     1124           

Impacted Files	Coverage Δ
sky130/layers.py	99.81% <75.00%> (ø)
sky130/config.py	96.77% <100.00%> (+0.10%)	:arrow_up:

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