Added an build with an custom image.

.gitea/workflows/test-build.yaml

@@ -6,7 +6,10 @@ jobs:
   LatexBuild:
     runs-on: pi
     container:
-      image: miktex/miktex:latest
+      image: git.horstenkamp.eu/server/textlive-docker-image/texlive:main
+      credentials:
+        username: runner
+        password: ${{ secrets.PACKAGES }}}
     steps:
     - name: Checkout
       uses: actions/checkout@v3