Update release.yml

Author: iocoker

.github/workflows/release.yml

@@ -15,6 +15,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+
+      - name: Install Subversion
+        run: sudo apt-get update && sudo apt-get install -y subversion
 
       - name: Merge and release latest changes into the SVN repo
         env: