Keep only rolling release workflow

docs/ci-gitea.md

@@ -1,12 +1,10 @@
 # Gitea CI and rolling releases
 
-Gitea Actions reads workflows from `.gitea/workflows/`. This repository has two
-workflows:
+Gitea Actions reads workflows from `.gitea/workflows/`. This repository has one
+workflow:
 
 ```mermaid
 flowchart LR
-  Push[Push / pull request] --> CI[.gitea/workflows/ci.yml]
-  CI --> Tests[npm test + Python syntax + package smoke]
   Main[Push to main] --> RR[rolling-release.yml]
   RR --> Build[Build deb + extension + checksums]
   Build --> API[Gitea release API]
@@ -22,7 +20,8 @@ references it as `${{ secrets.RELEASE_TOKEN }}`; the value is never committed.
 
 ## Rolling behavior
 
-Each push to `main` runs tests and packaging. The publish script:
+Each push to `main` runs tests and packaging. Manual dispatch is also available.
+The publish script:
 
 1. Deletes the existing release associated with `rolling`, if present.
 2. Deletes and recreates the `rolling` tag at the pushed commit using Gitea's