build: fix issue with sonatype url

gradle/convention/src/main/kotlin/justjanne.publish-maven-central.gradle.kts

@@ -8,7 +8,10 @@ val canSign = project.properties.keys
 if (canSign) {
     nexusPublishing {
         repositories {
-          sonatype()
+            sonatype {
+                nexusUrl.set(uri("https://s01.oss.sonatype.org/service/local/"))
+                snapshotRepositoryUrl.set(uri("https://s01.oss.sonatype.org/content/repositories/snapshots/"))
+            }
         }
     }
 }