Bump the minimum JDK version to JDK 17.

It is required by Scala 3.8.x.

Author: mrdziuban

.github/workflows/release.yml

@@ -10,10 +10,10 @@ jobs:
       - uses: actions/checkout@v3.0.2
         with:
           fetch-depth: 0
-      - name: Set up JDK 8
+      - name: Set up JDK 17
         uses: coursier/setup-action@v1
         with:
-          jvm: temurin:1.8
+          jvm: temurin:1.17
           apps: sbt
       - name: sbt ci-release
         run: sbt versionCheck ci-release

.github/workflows/scala.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     strategy:
       matrix:
-        java: [ '8', '11', '17', '21' ]
+        java: [ '17', '21' ]
 
     runs-on: ubuntu-latest