Specify java versions, update version to try out jitpack publisher again

Author: jsoberg

.github/workflows/publish-to-jitpack.yml

@@ -3,9 +3,15 @@ on:
     types: [published]
 
 jobs:
-  build:
+  publish-to-jitpack:
     runs-on: ubuntu-latest
     steps:
+      - name: Setup JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'adopt'
+          java-version: '21'
+
       - uses: badasintended/autojitpack@v1
         with:
           version: ${{ github.event.release.tag_name }}

build.gradle.kts

@@ -26,6 +26,14 @@ tasks.withType<Test> {
     useJUnitPlatform()
 }
 
+java {
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(JavaVersion.VERSION_21.toString()))
+    }
+}
+
 publishing {
     publications {
         create<MavenPublication>("maven") {

buildSrc/src/main/kotlin/Publishing.kt

@@ -1,5 +1,5 @@
 object Publishing {
     const val ArtifactId = "kotlin-aoc-utilities"
     const val GroupId = "com.github.jsoberg"
-    const val Version = "2025.1"
+    const val Version = "2025.1.1"
 }