fix: switch to ubuntu-latest

Author: kwikenkwak

.github/workflows/publish-to-maven-central.yml

@@ -1,4 +1,3 @@
-# .github/workflows/publish-to-maven.yml
 name: Publish to Maven Central
 
 on:
@@ -17,7 +16,7 @@ permissions:
 jobs:
   publish:
     if: github.event.sender.site_admin == true
-    runs-on: [self-hosted, linux]
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4