build: tag v0.12 (#310)

Author: oameye

Project.toml

@@ -1,7 +1,7 @@
 name = "HarmonicBalance"
 uuid = "e13b9ff6-59c3-11ec-14b1-f3d2cc6c135e"
 authors = ["Jan Kosata <kosataj@phys.ethz.ch>", "Javier del Pino <jdelpino@phys.ethz.ch>", "Orjan Ameye <orjan.ameye@hotmail.com>"]
-version = "0.11.1"
+version = "0.12.0"
 
 [deps]
 BijectiveHilbert = "91e7fc40-53cd-4118-bd19-d7fcd1de2a54"