chore: remove old Agola config

.agola/config.yml

@@ -1,48 +0,0 @@
-version: v0
-runs:
-  - name: Build
-    tasks:
-      - name: Checkout code
-        runtime:
-          type: pod
-          containers:
-            - image: docker.io/alpine/git
-        steps:
-          - clone:
-              recurse_submodules: true
-          - save_to_workspace:
-              contents:
-                - source_dir: .
-                  dest_dir: .
-                  paths:
-                    - '**'
-      - name: Build Docker-in-Docker image
-        runtime:
-          containers:
-            - image: gcr.io/kaniko-project/executor:debug
-        environment:
-          DOCKERAUTH:
-            from_variable: dockerauth            
-        shell: /busybox/sh
-        steps:
-          - restore_workspace:
-              dest_dir: .
-          - run:
-              name: generate docker config
-              command: |
-                cat << EOF > /kaniko/.docker/config.json
-                {
-                  "auths": {
-                    "https://code.icb4dc0.de": { "auth" : "$DOCKERAUTH" }
-                  }
-                }
-                EOF                
-          - run:
-              name: Build and push image
-              command: |
-                /kaniko/executor \
-                  --destination code.icb4dc0.de/prskr/ci-images/dind:latest \
-                  --context dir:///root/project/ \
-                  --dockerfile /root/project/dind/Dockerfile
-        depends:
-          - Checkout code