feat: switch from hourly to nightly rebuilds

* hourly is a bit much anyway

.drone.yml

@@ -83,7 +83,7 @@ trigger:
   event:
     - cron
   cron:
-    - hourly-build
+    - nightly
   status:
     - success
     - failure
@@ -98,7 +98,7 @@ steps:
     settings:
       message: >
         {{#success build.status}}
-          ✅ [Hourly build #{{build.number}}]({{build.link}}) of `{{repo.name}}` succeeded.
+          ✅ [Nightly build #{{build.number}}]({{build.link}}) of `{{repo.name}}` succeeded.
           event: **`{{build.event}}`**
           commit [`${DRONE_COMMIT_SHA:0:7}`](https://git.dotya.ml/${DRONE_REPO}/commit/${DRONE_COMMIT_SHA}) by {{commit.author}} on `{{commit.branch}}`
         {{else}}

README.md

@@ -7,7 +7,7 @@
 
 This repository provides the Dockerfile to create a Docker image used for web developent using [Hugo](https://gohugo.io) website building framework.
 
-The image is rebuilt approximately every hour to ensure it always has the latest packages.
+The image is rebuilt <del>approximately every hour</del> nightly to ensure it always has the latest packages.
 
 push mirror lives in [this GitHub repo](https://github.com/wULLSnpAXbWZGYDYyhWTKKspEQoaYxXyhoisqHf/docker-fedora-hugo)  
 development happens on [this Gitea instance](https://git.dotya.ml/wanderer/docker-fedora-hugo)