Standard setting for ["train"]["scheduler"]["eps"] results in TypeError

[GitMup]

Shen running with de default settings, the value 1e-08 for eps in the config file is read as a string resulting in a TypeError later on in ReduceLROnPlateau._reduce_lr

Suggest adjusting default value or casting float values as floats in deepforest.configure_optimizers

[bw4sz]

fixed in #881