fix(server): use correct coordinates in generated Maven metadata file (#1610)

Author: Vampire

maven-binding-builder/src/main/kotlin/io/github/typesafegithub/workflows/mavenbinding/MavenMetadataBuilding.kt

@@ -1,7 +1,6 @@
 package io.github.typesafegithub.workflows.mavenbinding
 
 import io.github.typesafegithub.workflows.actionbindinggenerator.domain.ActionCoords
-import io.github.typesafegithub.workflows.actionbindinggenerator.domain.fullName
 import io.github.typesafegithub.workflows.shared.internal.fetchAvailableVersions
 import java.time.format.DateTimeFormatter
 
@@ -18,7 +17,7 @@ internal suspend fun ActionCoords.buildMavenMetadataFile(githubToken: String): S
         <?xml version="1.0" encoding="UTF-8"?>
         <metadata>
           <groupId>$owner</groupId>
-          <artifactId>$fullName</artifactId>
+          <artifactId>$mavenName</artifactId>
           <versioning>
             <latest>$newest</latest>
             <release>$newest</release>