Update Nexus credentials property names and Jenkins pipeline for publishing

build.gradle.kts

@@ -28,8 +28,8 @@ publishing {
             name = "nexus"
             url = uri("https://repo.alttd.com/repository/alttd-snapshot/")
             credentials {
-                username = project.property("alttdSnapshotUsername") as String
-                password = project.property("alttdSnapshotPassword") as String
+                username = project.property("alttdDevPublishUser") as String
+                password = project.property("alttdDevPublishPass") as String
             }
         }
     }