build(fpm): simplify manifest, update julienne

This commit

1. Removes unnecessary information from the fpm.toml file,
   including removing the depenence on sourcery, which provided a
   capability that is at least partially redundant with a similar
   capability in julienne and
2. Updates the julienne dependency to version 2.3.0.

Author: rouson

fpm.toml

@@ -1,10 +1,5 @@
 name = "matcha"
-version = "0.1.0"
-license = "see LICENSE.txt"
-author = "Damian Rouson, David Torres,  Dominick Martinez, Jeremiah Bailey, and Brad Richardson"
-maintainer = "rouson@lbl.gov"
 
 [dependencies]
 assert = {git = "https://github.com/berkeleylab/assert", tag = "2.1.0"}
-julienne = {git = "https://github.com/BerkeleyLab/julienne", tag = "2.0.0"}
-sourcery = {git = "https://github.com/sourceryinstitute/sourcery", tag = "4.5.1"}
+julienne = {git = "https://github.com/BerkeleyLab/julienne", tag = "2.3.0"}