Update scala 2.13.0-RC2 to 2.13.0-RC3

Author: Philippus

.travis.yml

@@ -10,7 +10,7 @@ scala:
   - 2.10.7
   - 2.11.12
   - 2.12.8
-  - 2.13.0-RC2
+  - 2.13.0-RC3
 
 before_cache:
   - find "$HOME/.sbt/" -name '*.lock' -print0 | xargs -0 rm

build.sbt

@@ -11,7 +11,7 @@ val ScalatestVersion = "3.0.8-RC5"
 val appSettings = Seq(
     organization := Org,
     scalaVersion := "2.12.8",
-    crossScalaVersions := Seq("2.10.7", "2.11.12", "2.12.8", "2.13.0-RC2"),
+    crossScalaVersions := Seq("2.10.7", "2.11.12", "2.12.8", "2.13.0-RC3"),
     fork in Test := false,
     publishMavenStyle := true,
     publishArtifact in Test := false,