fix(data-computer): fixed lda-segments default param

services/data-computer/v1/lda-segment.cfg

@@ -9,7 +9,7 @@ plugin = spawn
 # command should be executable !
 command = ./v1/lda.py
 args = fix('-p')
-args = env('nbTopic',15)
+args = env('nbTopic',6)
 
 # Step 2.1.1 (spécifique): Propose un reformatage de sortie pour usage simplifier dans Lodex
 [exchange]