Fix potential github action smells (#3826)

- Avoid running CI related actions when no source code has changed
- Steps should only perform a single command
- Avoid deploying jobs on forks

.github/workflows/site.yml

@@ -6,6 +6,8 @@ on:
   # Runs on pushes targeting the main branch
   push:
     branches: [main]
+    paths:
+      - webiste/**
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -45,14 +47,17 @@ jobs:
       - name: Build
         run: npm run build
       - name: Install website dependencies
-        run: cd website && npm ci
+        working-directory: website
+        run: npm ci
       - name: Sync Crowdin
-        run: cd website && npm run crowdin:sync
+        working-directory: website
+        run: npm run crowdin:sync
         continue-on-error: true
         env:
           CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
       - name: Build docs
-        run: cd website && npm run build
+        working-directory: website
+        run: npm run build
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
@@ -65,6 +70,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     needs: build
+    if: ${{github.repository == 'cheeriojs/cheerio'}}
     steps:
       - name: Deploy to GitHub Pages
         id: deployment