Improve the gradle settings (#240)

Author: yutaro-sakamoto

.github/workflows/publish-libcobj.yml

@@ -1,6 +1,8 @@
 name: Publish package to GitHub Packages
 on:
   workflow_dispatch:
+  release:
+    types: [published]
 jobs:
   publish:
     runs-on: ubuntu-latest

libcobj/app/build.gradle.kts

@@ -28,7 +28,7 @@ publishing {
     repositories {
         maven {
             name = "GitHubPackages"
-            url = uri("https://maven.pkg.github.com/yutaro-sakamoto/opensourcecobol4j")
+            url = uri("https://maven.pkg.github.com/opensourcecobol/opensourcecobol4j")
             credentials {
                 username = project.findProperty("gpr.user") as String? ?: System.getenv("GITHUB_ACTOR")
                 password = project.findProperty("gpr.key") as String? ?: System.getenv("GITHUB_TOKEN")
@@ -37,6 +37,9 @@ publishing {
     }
     publications {
         register<MavenPublication>("gpr") {
+            groupId = "jp.osscons.opensourcecobol"
+            artifactId = "libcobj"
+            version = "1.0.15b"
             from(components["java"])
         }
     }