fix ci

.woodpecker/ci.yaml

@@ -0,0 +1,17 @@
+when:
+  - event: push
+
+steps:
+  - name: build-image
+    image: docker
+    commands:
+      - docker build --rm -t jrop/u.nvim .
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+
+  - name: build
+    image: jrop/u.nvim
+    commands:
+      - nix-shell --pure --run 'make lint'
+      - nix-shell --pure --run 'make fmt-check'
+      - nix-shell --pure --run 'make test'