Update Travis config (Scala 2.13.5) and sbt (1.4.9)

MateuszKubuszok · MateuszKubuszok · commit d9ca3c486ef7 · 2021-03-11T19:52:49.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language:       scala
 scala:
-              - 2.13.4
+              - 2.13.5
 jdk:
               - openjdk8
               - openjdk11
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.8
+sbt.version=1.4.9
