deps(ci): bump tailscale/github-action from 3.3.0 to 4.0.1

Bumps [tailscale/github-action](https://github.com/tailscale/github-action) from 3.3.0 to 4.0.1.
- [Release notes](https://github.com/tailscale/github-action/releases)
- [Commits](tailscale/github-action@6cae46e...ac425ca)

---
updated-dependencies:
- dependency-name: tailscale/github-action
  dependency-version: 4.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/generate.yml

@@ -27,7 +27,7 @@ jobs:
           go-version-file: go.mod
 
       - name: Connect to Tailnet
-        uses: tailscale/github-action@6cae46e2d796f265265cfcf628b72a32b4d7cade #v3.3.0
+        uses: tailscale/github-action@ac425ca19416ebb90dd453776414ffb1cdba8f91 #v4.0.1
         with:
           args: --accept-dns=true
           oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}