Update dotty 0.21.0-RC1

Author: ashawley

.circleci/config.yml

@@ -83,9 +83,9 @@ workflows:
           java_version: jdk8
           scala_version: 2.13.1
       - scala_job:
-          name: dotty-0.18
+          name: dotty-0.21
           java_version: jdk8
-          scala_version: 0.20.0-RC1
+          scala_version: 0.21.0-RC1
       - scala_job:
           name: jdk11_2.12
           java_version: jdk11
@@ -97,7 +97,7 @@ workflows:
       - scala_job:
           name: jdk11_dotty
           java_version: jdk11
-          scala_version: 0.20.0-RC1
+          scala_version: 0.21.0-RC1
       - scalajs_job:
           name: sjs0.6_2.12
           scala_version: 2.12.10

.travis.yml

@@ -5,7 +5,7 @@ import: scala/scala-dev:travis/default.yml
 language: scala
 
 scala:
-  - 0.20.0-RC1
+  - 0.21.0-RC1
   - 2.12.10
   - 2.13.1
 
@@ -17,9 +17,9 @@ env:
 
 matrix:
   exclude:
-    - scala: 0.20.0-RC1
+    - scala: 0.21.0-RC1
       env: SCALAJS_VERSION=0.6.31    ADOPTOPENJDK=8
-    - scala: 0.20.0-RC1
+    - scala: 0.21.0-RC1
       env: SCALAJS_VERSION=1.0.0-RC2 ADOPTOPENJDK=8
 
 install: