[bug] fixed ruff warnings

[leoniewgnr]

🔬 Background

ruf warnings because type instead of isinstance was used

[github-actions]

Model Benchmark

Benchmark	Metric	main	current	diff
YosemiteTemps	MAE_val	1.34899	1.34899	0.0%	✅
YosemiteTemps	RMSE_val	2.00817	2.00817	0.0%	✅
YosemiteTemps	Loss_val	0.00078	0.00078	0.0%	✅
YosemiteTemps	MAE	1.32133	1.32133	0.0%	✅
YosemiteTemps	RMSE	2.13713	2.13713	0.0%	✅
YosemiteTemps	Loss	0.00064	0.00064	0.0%	✅
YosemiteTemps	time	73.8058	71.1	-3.67%	✅
PeytonManning	MAE_val	0.58162	0.58162	0.0%	✅
PeytonManning	RMSE_val	0.72218	0.72218	0.0%	✅
PeytonManning	Loss_val	0.01239	0.01239	0.0%	✅
PeytonManning	MAE	0.41671	0.41671	0.0%	✅
PeytonManning	RMSE	0.55961	0.55961	0.0%	✅
PeytonManning	Loss	0.00612	0.00612	0.0%	✅
PeytonManning	time	15.7823	14.78	-6.35%	🎉
AirPassengers	MAE_val	13.0627	13.0627	0.0%	✅
AirPassengers	RMSE_val	15.9453	15.9453	0.0%	✅
AirPassengers	Loss_val	0.00131	0.00131	0.0%	✅
AirPassengers	MAE	9.88153	9.88153	0.0%	✅
AirPassengers	RMSE	11.7354	11.7354	0.0%	✅
AirPassengers	Loss	0.00052	0.00052	0.0%	✅
AirPassengers	time	6.69458	6.33	-5.45%	🎉

Model training plots

Model Training

PeytonManning

YosemiteTemps

AirPassengers

[codecov]

Codecov Report

Merging #1408 (7dae671) into main (596c3ee) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1408   +/-   ##
=======================================
  Coverage   89.87%   89.87%           
=======================================
  Files          38       38           
  Lines        5067     5067           
=======================================
  Hits         4554     4554           
  Misses        513      513           

Files Changed	Coverage Δ
neuralprophet/df_utils.py	94.65% <100.00%> (ø)
neuralprophet/plot_utils.py	88.01% <100.00%> (ø)

[LeonieFreisinger]

LGTM