advance Scalameta (4.7.x -> 4.8.x) (#1681)

Author: SethTisue

core/scalameta.conf

@@ -1,11 +1,11 @@
-// https://github.com/scalameta/scalameta.git#v4.7.8
+// https://github.com/scalameta/scalameta.git#v4.8.3
 
 // we typically use a tag here rather than track a branch, in the
 // interest of stability.  whatever tag scalafmt and/or scalafix expect
 
 vars.proj.scalameta: ${vars.base} {
   name: "scalameta"
-  uri: "https://github.com/scalameta/scalameta.git#733169ecb6758bfbb2de0d2718be620d7c98294e"
+  uri: "https://github.com/scalameta/scalameta.git#5d32d25e3c51fec63be0d54c9e513e1e6f226582"
 
   extra.projects: ["semanticdbScalacPlugin", "testkitJVM"]
   extra.commands: ${vars.default-commands} [