Merge pull request '@junior: CI: registry push fails with unauthorized' (#4) from ai/issue-3 into main

Reviewed-on: #4

.gitea/workflows/build.yml

@@ -1,5 +1,5 @@
 name: build-and-push
-run-name: "build-and-push · ${gitea.ref_name}"
+run-name: "build-and-push · ${{ gitea.ref_name }}"
 # Builds the homepage image and pushes it to this Gitea instance's container
 # registry as git.ffaerber.duckdns.org/ffaerber/homepage:latest on every push to main.
 on:
@@ -16,7 +16,7 @@ env:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: ci-runner
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -28,8 +28,8 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: git.ffaerber.duckdns.org
-          username: ${{ gitea.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          username: ffaerber
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Build and push
         uses: docker/build-push-action@v6