bump bijectors (#152)

Author: Red-Portal

Project.toml

@@ -32,7 +32,7 @@ AdvancedVIZygoteExt = ["Zygote"]
 
 [compat]
 ADTypes = "0.2, 1"
-Bijectors = "0.11, 0.12, 0.13, 0.14"
+Bijectors = "0.11, 0.12, 0.13, 0.14, 0.15"
 DiffResults = "1"
 Distributions = "0.21, 0.22, 0.23, 0.24, 0.25"
 DistributionsAD = "0.2, 0.3, 0.4, 0.5, 0.6"