update recipes

recipes/wip/zenith/recipe.toml

-#TODO Not compiled or tested
+#TODO async-io and rustix crate errors (after cargo update)
 [source]
 git = "https://github.com/bvaisvil/zenith"
 [build]

recipes/wip/zet/recipe.toml

 #TODO compiled after cargo update, not tested
 [source]
 git = "https://github.com/yarrow/zet"
-rev = "c1ee170d6a910650a668ad8180dd40f1787d1733"
 [build]
 template = "cargo"