Staged docs releases (#50136)

Closes #ISSUE

Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A *or* Added/Fixed/Improved ...

.github/workflows/deploy_nightly_docs.yml

@@ -0,0 +1,23 @@
+# Generated from xtask::workflows::deploy_nightly_docs
+# Rebuild with `cargo xtask workflows`.
+name: deploy_nightly_docs
+on:
+  push:
+    branches:
+    - main
+jobs:
+  deploy_docs:
+    if: (github.repository_owner == 'zed-industries' || github.repository_owner == 'zed-extensions')
+    permissions:
+      contents: read
+    uses: zed-industries/zed/.github/workflows/deploy_docs.yml@main
+    secrets:
+      DOCS_AMPLITUDE_API_KEY: ${{ secrets.DOCS_AMPLITUDE_API_KEY }}
+      CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+      CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+    with:
+      channel: nightly
+      checkout_ref: ${{ github.sha }}
+defaults:
+  run:
+    shell: bash -euxo pipefail {0}