fix correctly env loading

Singularityfile

@@ -13,7 +13,8 @@ apt-get update && apt-get install -y procps && apt-get clean -y
 %environment
 export LC_ALL=C
 export PATH=/opt/conda/bin:$PATH
-export PATH=/opt/conda/envs/GeT-template-1.0dev/bin:$PATH
+. /etc/profile.d/conda.sh
+conda activate GeT-template-1.0dev
 
 %runscript
 "$@"