Update CI metrics.yml to use Node 20

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Addressing Warning

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Model Benchmark

Benchmark	Metric	main	current	diff
YosemiteTemps	MAE_val	0.58159	0.58159	0.0%	✅
YosemiteTemps	RMSE_val	0.86935	0.86935	0.0%	✅
YosemiteTemps	Loss_val	0.00044	0.00044	0.0%	✅
YosemiteTemps	train_loss	0.0012	0.0012	0.0%	✅
YosemiteTemps	reg_loss	0	0	0.0%	✅
YosemiteTemps	MAE	0.94811	0.94811	0.0%	✅
YosemiteTemps	RMSE	1.66847	1.66847	0.0%	✅
YosemiteTemps	Loss	0.0012	0.0012	0.0%	✅
YosemiteTemps	time	140.687	140.76	0.05%	✅
EnergyPriceDaily	MAE_val	5.42935	5.42935	0.0%	✅
EnergyPriceDaily	RMSE_val	6.88991	6.88991	0.0%	✅
EnergyPriceDaily	Loss_val	0.02655	0.02655	0.0%	✅
EnergyPriceDaily	train_loss	0.02758	0.02758	0.0%	✅
EnergyPriceDaily	reg_loss	0	0	0.0%	✅
EnergyPriceDaily	MAE	6.15242	6.15242	0.0%	✅
EnergyPriceDaily	RMSE	8.26192	8.26192	0.0%	✅
EnergyPriceDaily	Loss	0.02739	0.02739	0.0%	✅
EnergyPriceDaily	time	40.2741	40.81	1.33%	✅
AirPassengers	MAE_val	30.081	30.081	0.0%	✅
AirPassengers	RMSE_val	30.9826	30.9826	0.0%	✅
AirPassengers	Loss_val	0.01234	0.01234	0.0%	✅
AirPassengers	train_loss	0.00071	0.00071	0.0%	✅
AirPassengers	reg_loss	0	0	0.0%	✅
AirPassengers	MAE	6.86203	6.86203	0.0%	✅
AirPassengers	RMSE	8.81789	8.81789	0.0%	✅
AirPassengers	Loss	0.00074	0.00074	0.0%	✅
AirPassengers	time	9.95006	9.93	-0.2%	✅
PeytonManning	MAE_val	0.35447	0.35447	0.0%	✅
PeytonManning	RMSE_val	0.50324	0.50324	0.0%	✅
PeytonManning	Loss_val	0.01796	0.01796	0.0%	✅
PeytonManning	train_loss	0.01461	0.01461	0.0%	✅
PeytonManning	reg_loss	0	0	0.0%	✅
PeytonManning	MAE	0.34738	0.34738	0.0%	✅
PeytonManning	RMSE	0.49347	0.49347	0.0%	✅
PeytonManning	Loss	0.01461	0.01461	0.0%	✅
PeytonManning	time	25.6839	25.63	-0.21%	✅

Model training plots

Model Training

PeytonManning

YosemiteTemps

AirPassengers

EnergyPriceDaily