Update to Java 11

This satisfies one of the updated requirements of Panda v7 - as of
guardian/pan-domain-authentication#150 it
requires Java 11.

See also:

* guardian/maintaining-scala-projects#3

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Setup Java
         uses: actions/setup-java@v3
         with:
-          java-version: '8'
+          java-version: '11'
           distribution: 'corretto'
           cache: 'sbt'
 

.java-version

@@ -1 +1 @@
-1.8
+11

build.sbt

@@ -9,7 +9,7 @@ lazy val scalaVer = "2.12.19"
 resolvers ++= Resolver.sonatypeOssRepos("releases")
 
 scalacOptions ++= Seq(
-  "-target:jvm-1.8",
+  "-release:11",
   "-encoding", "UTF-8",
   "-unchecked",
   "-deprecation",
@@ -59,7 +59,7 @@ lazy val root = (project in file(".")).enablePlugins(PlayScala, SbtWeb, JDebPack
       "-Dpidfile.path=/dev/null"
     ),
 
-    debianPackageDependencies := Seq("openjdk-8-jre-headless"),
+    debianPackageDependencies := Seq("java11-runtime-headless"),
     maintainer := "digital tools team <digitalcms.dev@guardian.co.uk>",
     packageSummary := "tag manager",
     packageDescription := """manage tags""",

riff-raff.yaml

@@ -15,7 +15,7 @@ deployments:
     parameters:
       amiTags:
         BuiltBy: amigo
-        Recipe: editorial-tools-focal-java8-ARM-WITH-cdk-base
+        Recipe: editorial-tools-focal-java11-ARM-WITH-cdk-base
         AmigoStage: PROD
       amiEncrypted: true
       prependStackToCloudFormationStackName: false