skipdeploy: Fixed logic for deployment skipping

.gitea/workflows/deploy.yaml

@@ -10,9 +10,6 @@ jobs:
     runs-on: host
 
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
-
       - name: Check commit message for "skipdeploy"
         id: check_commit
         run: |
@@ -24,6 +21,10 @@ jobs:
           else
             echo "should_deploy=true" >> $GITHUB_ENV
           fi
+      
+      - name: Checkout code
+        if: env.should_deploy == 'true'
+        uses: actions/checkout@v3
 
       - name: Build site
         if: env.should_deploy == 'true'