Fix tag for deployment

Tag 0.3.0 already exists
Giving it a new tag (0.3.1)

Author: YoungFaithful

Project.toml

@@ -4,7 +4,7 @@ keywords = ["clustering", "JuMP", "optimization"]
 license = "MIT"
 desc = "julia implementation of using different clustering methods for finding representative periods for the optimization of energy systems"
 author = ["Holger Teichgraeber"]
-version = "0.3.0"
+version = "0.3.1"
 
 [deps]
 CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"