Move CI to Git submodule

.woodpecker/build.yaml

@@ -1,26 +0,0 @@
----
-matrix:
-  ARCH:
-    - amd64
-    - arm64
-
-steps:
-  - name: build
-    image: woodpeckerci/plugin-kaniko
-    backend_options:
-      kubernetes:
-        nodeSelector:
-          kubernetes.io/arch: ${ARCH}
-        tolerations:
-          - key: arch
-            operator: Equal
-            value: ${ARCH}
-            effect: NoSchedule
-    settings:
-      repo: ${CI_REPO}
-      registry: harbor.k-space.ee
-      tags: latest-${ARCH}
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password