Update assert dependency in fpm.toml

Author: ktras

fpm.toml

@@ -1,5 +1,5 @@
 name = "matcha"
 
 [dependencies]
-assert = {git = "https://github.com/rouson/assert", tag = "assert-3.0.0"}
+assert = {git = "https://github.com/BerkeleyLab/assert.git", tag = "2.1.2"}
 julienne = {git = "https://github.com/BerkeleyLab/julienne", tag = "2.4.0"}