Change repository URL to use SSH

Author: C-o-m-o-n

.github/workflows/deploy-pi.yml

@@ -31,7 +31,7 @@ jobs:
           script: |
             set -e
             APP_DIR="/home/comon/ACT"
-            REPO_URL="https://github.com/Comon-tech/ACT.git"
+            REPO_URL="git@github.com:Comon-tech/ACT.git"
             REMOTE="origin"
             BRANCH="main"