Bug in db3 diac model

[HVogt.1]

There is a bug in the db3 diac model found in https://www.st.com/en/thyristors-scr-and-ac-switches/db3.html#11

line 79

R_R1        N02098 TRG {1.462*Tr} ; <---------------------- bug fix for 1.462*{Tr}