CompatHelper: bump compat for DocStringExtensions to 0.9, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -20,7 +20,7 @@ Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 Bijectors = "0.4.0, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10"
 Distributions = "0.21, 0.22, 0.23, 0.24, 0.25"
 DistributionsAD = "0.2, 0.3, 0.4, 0.5, 0.6"
-DocStringExtensions = "0.8"
+DocStringExtensions = "0.8, 0.9"
 ForwardDiff = "0.10.3"
 ProgressMeter = "1.0.0"
 Requires = "0.5, 1.0"