CompatHelper: bump compat for "AbstractMCMC" to "3.0" (#19)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: David Widmann <devmotion@users.noreply.github.com>

Author: github-actions[bot]

Project.toml

@@ -3,11 +3,11 @@ uuid = "7a57a42e-76ec-4ea3-a279-07e840d6d9cf"
 keywords = ["probablistic programming"]
 license = "MIT"
 desc = "Common interfaces for probabilistic programming"
-version = "0.1.3"
+version = "0.1.4"
 
 [deps]
 AbstractMCMC = "80f14c24-f653-4e6a-9b94-39d6b0f70001"
 
 [compat]
-AbstractMCMC = "2"
+AbstractMCMC = "2, 3"
 julia = "1"