add ci

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: Cargo Build & Test
+
+on:
+  push:
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+  ETH_RPC_URL: https://eth.drpc.org
+
+jobs:
+  build_and_test:
+    name: Rust project - latest
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+          - beta
+          - nightly
+    steps:
+      - uses: actions/checkout@v3
+      - name: Update
+        run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
+      - name: Build
+        run: cargo build --verbose
+      - name: Run tests
+        run: cargo test --verbose
+      - name: Run Clippy
+        run: cargo clippy