Update tarball download URL in Homebrew workflow

The commit modifies the URL used for downloading the release tarball in the Homebrew workflow. It now correctly includes the tag of the latest release in the URL. By replacing static text with dynamic variable, it ensures that the correct version of the tarball is always sourced.

.github/workflows/homebrew.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Download release tarball
         run: |
-          wget https://github.com/alps-asd/app-state-diagram/releases/download{{ steps.latest_release.outputs.tag }}/asd.phar
+          wget https://github.com/alps-asd/app-state-diagram/releases/download/${{ steps.latest_release.outputs.tag }}/asd.phar
 
       - name: Calculate SHA256
         id: sha