YML: Make java11 primary, remove java8

This will also allow using mdoc-parser which no longer works with java8.

.github/workflows/ci.yml

@@ -17,11 +17,8 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- java: [ '8', '11' ]
+ java: [ '11' ]
  os: [windows-latest, ubuntu-latest]
- exclude:
- - os: windows-latest
- java: '8'
  runs-on: ${{ matrix.os }}
  steps:
  - uses: actions/checkout@v4

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
  fetch-depth: 0
  - uses: actions/setup-java@v3
  with:
- java-version: '8'
+ java-version: '11'
  distribution: 'temurin'
  cache: 'sbt'
  - name: Publish ${{ github.ref }}

build.sbt

@@ -188,7 +188,6 @@ import sbtassembly.AssemblyPlugin.defaultUniversalScript
 
 val scalacJvmOptions = Def.setting {
  val cross = CrossVersion.partialVersion(scalaVersion.value) match {
- case Some((2, 11)) => Seq("-target:jvm-1.8")
  case Some((2, 13)) =>
  Seq(
  "-Ymacro-annotations",