ci: use pre-built novoyuuparosk-wiki-runner image

Drops apt-get and pip install steps — deps are baked into the
locally-built shared runner image. See novoyuuparosk-auto-wiki
README for rebuild instructions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/publish.yml

@@ -12,12 +12,9 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     container:
-      image: python:3.12-slim
+      image: novoyuuparosk-wiki-runner:latest
 
     steps:
-      - name: Install system deps
-        run: apt-get update -qq && apt-get install -y --no-install-recommends git pandoc ca-certificates
-
       - name: Checkout ncmr-songs
         env:
           FAPAT: ${{ secrets.FAPAT }}
@@ -32,9 +29,6 @@ jobs:
           URL_TO_GITEA: ${{ vars.URL_TO_GITEA }}
         run: git clone "http://mikkeli:${FAPAT}@${URL_TO_GITEA#http://}/mikkeli/novoyuuparosk-auto-wiki" auto-wiki
 
-      - name: Install Python deps
-        run: pip install --no-cache-dir -r auto-wiki/pipelines/songs/requirements.txt
-
       - name: Publish
         env:
           WIKI_API_URL: ${{ vars.WIKI_API_URL }}