Update Scala versions (#473)

Author: sideeffffect

.github/workflows/dependency-graph.yml

@@ -11,4 +11,5 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/[email protected]
+      - uses: sbt/setup-sbt@v1
       - uses: scalacenter/[email protected]

src/main/scala/com/github/sideeffffect/sbtdecentscala/DecentScalaPlugin.scala

@@ -28,9 +28,9 @@ object DecentScalaPlugin extends AutoPlugin {
   }
 
   trait DecentScala {
-    def decentScalaVersion3 = "3.3.4"
-    def decentScalaVersion213 = "2.13.14"
-    def decentScalaVersion212 = "2.12.19" // scala-steward:off
+    def decentScalaVersion3 = "3.3.6"
+    def decentScalaVersion213 = "2.13.16"
+    def decentScalaVersion212 = "2.12.20" // scala-steward:off
     def decentScalaVersion211 = "2.11.12"
     def decentScalaSettings: List[Def.Setting[_]] =
       List(