fix(simulation): add missing SPICE functionality and update Sky 130 PDK

[rohanku]

No description provided.

[codecov]

Codecov Report

Attention: 74 lines in your changes are missing coverage. Please review.

Comparison is base (c9a8aea) 43.87% compared to head (64b7708) 43.94%.

Files	Patch %	Lines
libs/spice/src/parser/conv.rs	9.52%	10 Missing and 9 partials ⚠️
libs/spice/src/parser/mod.rs	16.66%	8 Missing and 7 partials ⚠️
libs/spice/src/parser/tests.rs	16.66%	1 Missing and 14 partials ⚠️
pdks/sky130pdk/src/lib.rs	21.05%	7 Missing and 8 partials ⚠️
libs/spice/src/netlist.rs	0.00%	5 Missing ⚠️
libs/spice/src/lib.rs	0.00%	2 Missing and 1 partial ⚠️
tools/ngspice/src/lib.rs	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #336      +/-   ##
==========================================
+ Coverage   43.87%   43.94%   +0.06%     
==========================================
  Files         147      147              
  Lines       17357    17399      +42     
  Branches     7124     7176      +52     
==========================================
+ Hits         7616     7646      +30     
+ Misses       4249     4248       -1     
- Partials     5492     5505      +13     

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