ci: Revalidate zed.dev after release (#59422)

Updates CI to use the revalidate mechanism for updating zed.dev post
release, instead of doing a full re-deploy.

Release Notes:

- N/A

.github/workflows/after_release.yml

@@ -29,14 +29,10 @@ jobs:
     steps:
     - name: after_release::rebuild_releases_page::refresh_cloud_releases
       run: curl -fX POST "https://cloud.zed.dev/releases/refresh?expect_tag=$TAG_NAME"
-    - name: steps::checkout_repo
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd
-      with:
-        clean: false
-    - name: after_release::rebuild_releases_page::redeploy_zed_dev
-      run: ./script/redeploy-vercel
+    - name: after_release::rebuild_releases_page::revalidate_zed_dev
+      run: 'curl -fX GET "https://zed.dev/api/revalidate?tag=releases" -H "Authorization: Bearer $ZED_DEV_REVALIDATE_TOKEN"'
       env:
-        VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
+        ZED_DEV_REVALIDATE_TOKEN: ${{ secrets.ZED_DEV_REVALIDATE_TOKEN }}
   deploy_docs:
     if: (github.repository_owner == 'zed-industries' || github.repository_owner == 'zed-extensions')
     permissions: