Actions: Use main branch (#288)

Author: ryonakano

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Release
-        uses: elementary/actions/release@master
+        uses: elementary/actions/release@main
         env:
           GIT_USER_TOKEN: "${{ secrets.GIT_USER_TOKEN }}"
           GIT_USER_NAME: "elementaryBot"