ci: Switch to personal registry

.github/workflows/docker-build.yaml

@@ -12,13 +12,16 @@ on:
 
 # Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
 env:
-  REGISTRY: ghcr.io
+  REGISTRY: git.depeuter.dev
   IMAGE_NAME: ${{ github.repository }}
+  RUNNER_TOOL_CACHE: /toolcache
 
 # There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu.
 jobs:
   build-and-push-image:
     runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-latest
     # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
     permissions:
       contents: read
@@ -39,7 +42,7 @@ jobs:
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          password: ${{ secrets.CI_TOKEN }}
 
       - name: Extract metadata for Docker images
         id: meta