[Docs] Fix MLFlow Sphinx test error #1508

ModelReport

Benchmark	Metric	main	current	diff
AirPassengers	MAE_val	31.6338	31.6338	0.0%	✅
AirPassengers	RMSE_val	32.6669	32.6669	0.0%	✅
AirPassengers	Loss_val	0.01372	0.01372	0.0%	✅
AirPassengers	MAE	6.24137	6.24137	0.0%	✅
AirPassengers	RMSE	7.82929	7.82929	0.0%	✅
AirPassengers	Loss	0.00063	0.00063	0.0%	✅
AirPassengers	time	10.5951	10.7	0.99%	✅
YosemiteTemps	MAE_val	0.64178	0.64178	0.0%	✅
YosemiteTemps	RMSE_val	0.92787	0.92787	0.0%	✅
YosemiteTemps	Loss_val	0.0005	0.0005	0.0%	✅
YosemiteTemps	MAE	1.092	1.092	0.0%	✅
YosemiteTemps	RMSE	1.89124	1.89124	0.0%	✅
YosemiteTemps	Loss	0.00155	0.00155	0.0%	✅
YosemiteTemps	time	60.2867	61	1.18%	✅
EnergyPriceDaily	MAE_val	5.55889	5.55889	0.0%	✅
EnergyPriceDaily	RMSE_val	7.12233	7.12233	0.0%	✅
EnergyPriceDaily	Loss_val	0.02829	0.02829	0.0%	✅
EnergyPriceDaily	MAE	6.37172	6.37172	0.0%	✅
EnergyPriceDaily	RMSE	8.53016	8.53016	0.0%	✅
EnergyPriceDaily	Loss	0.02907	0.02907	0.0%	✅
EnergyPriceDaily	time	14.7787	15.97	8.06%	❌
PeytonManning	MAE_val	0.3466	0.3466	0.0%	✅
PeytonManning	RMSE_val	0.49808	0.49808	0.0%	✅
PeytonManning	Loss_val	0.01752	0.01752	0.0%	✅
PeytonManning	MAE	0.34735	0.34735	0.0%	✅
PeytonManning	RMSE	0.48788	0.48788	0.0%	✅
PeytonManning	Loss	0.01457	0.01457	0.0%	✅
PeytonManning	time	20.6558	21.63	4.72%	⚠️