Bump PPrint version (#408)

Pulls in com-lihaoyi/PPrint#161 to help fix
`assertGoldenValue` codegen

Author: lihaoyi

build.mill

@@ -62,7 +62,7 @@ trait UtestMainModule extends CrossScalaModule with UtestModule with PlatformSca
     resolveUnpackShade(
       defaultResolver().classpath(
         Seq(
-          mvn"com.lihaoyi::pprint:0.9.3",
+          mvn"com.lihaoyi::pprint:0.9.5",
           mvn"com.lihaoyi::fansi:0.5.1",
           mvn"app.tulz::stringdiff:0.3.4"
         ),