Fix old plugin deletion (#24)

Author: jonas-wielage-sonarsource

gradle-modules/src/main/kotlin/org.sonarsource.cloud-native.sonar-plugin.gradle.kts

@@ -27,7 +27,7 @@ val cleanupTask = tasks.register<Delete>("cleanupOldVersion") {
 
     // those variables need to be calculated in the configuration phase to enable Configuration cache
     // https://docs.gradle.org/8.12.1/userguide/configuration_cache.html#config_cache:requirements:disallowed_types
-    var projectName = "${project.name}-*.jar"
+    var projectName = "${project.name}"
     var projectVersion = "${project.version}"
     delete(
         fileTree(layout.buildDirectory.dir("libs")).matching {