add ci workflow and dependabot

.github/dependabot.yml

@@ -0,0 +1,11 @@
+version: 2
+
+updates:
+- package-ecosystem: cargo
+  directory: "/"
+  schedule:
+    interval: weekly
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "weekly"

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Package check
+        run: cargo check
+
+      - name: Build
+        run: cargo build
+
+      - name: Lint
+        run: cargo clippy
+
+      - name: Test
+        run: cargo test