feat: adding drone

Signed-off-by: kjuulh <contact@kjuulh.io>

.drone.yml

@@ -0,0 +1,2 @@
+kind: template
+load: cuddle-rust-lib-plan.yaml

.woodpecker/test.yml

@@ -1,34 +0,0 @@
-when:
-  - event: [pull_request, tag]
-  - event: push
-    branch:
-      - main
-
-variables:
-  - &rust_image 'rustlang/rust:nightly'
-
-steps:
-  build:
-    image: *rust_image
-    group: ci
-    commands:
-      - "cargo build"
-
-  test:
-    image: *rust_image
-    group: ci
-    commands:
-      - "cargo test"
-
-  lint:
-    image: *rust_image
-    group: ci
-    commands:
-      - "cargo clippy"
-
-  fmt:
-    image: *rust_image
-    group: ci
-    commands:
-      - "cargo fmt --all --check"
-