Merge pull request #13 from mtj0928/skip-install-on-ci

Skip unnecessary install

Author: mtj0928

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
       run: |
         curl -O https://download.swift.org/swiftly/darwin/swiftly.pkg 
         installer -pkg swiftly.pkg -target CurrentUserHomeDirectory
-        ~/.swiftly/bin/swiftly init --quiet-shell-followup
+        ~/.swiftly/bin/swiftly init --quiet-shell-followup --skip-install
         . "${SWIFTLY_HOME_DIR:-$HOME/.swiftly}/env.sh"
         hash -r
     - name: Add Swiftly to PATH