lightcurve version 0.8.2 breaks the pipeline

[JulienPeloton]

Recent changes introduced e.g. in light-curve/light-curve-python#324 are not compatible with the code shipped for the Early SN Ia module. Note that the changes appeared either in 0.8.2 or 0.9.0.

• freeze the version of lightcurve to 0.8.1 (Freeze light-curve package to 0.8.1 #381 )
• update the code for lightcurve version 0.8.2 and then 0.9.0
• bump lightcurve version to 0.9.0 (fink-docker & fink-broker)

[JulienPeloton]

• 439 add new elasticc model for earlysnia #440
• Updated model for the latest version of light-curve package #435
• Updated slsn #429