Updated master branch in publish blog workflow (#2)

Co-authored-by: hkt <[email protected]>

Author: assayire

.github/workflows/publish-blog.yml

@@ -2,7 +2,7 @@ name: Publish Blog to GitHub Pages
 
 on:
   push:
-    branches: [ main, hkt ]
+    branches: [ master ]
     paths:
       - 'src/main/resources/blog/**'
       - 'src/main/scala/blog/**'