copy: fix miss

ing rsync not packaged in gitea/ubuntu-latest

ssh-copy/action.yml

@@ -24,6 +24,14 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - name: install rsync
+      shell: bash
+      run: |
+        set -euo pipefail
+        command -v rsync >/dev/null && exit 0
+        sudo apt-get -qq update
+        sudo apt-get -yqq install rsync
+
     - name: setup ssh
       shell: bash
       env: