ci: setup e2e-tests in github workflow

.github/workflows/e2e_tests.yml

@@ -0,0 +1,44 @@
+name: End-to-end tests
+
+on:
+  push:
+    branches:
+      - '**'
+    paths:
+      - Cargo.toml
+      - Cargo.lock
+      - 'contracts/**'
+      - 'crates/**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup rust toolchain
+        run: rustup toolchain install stable --profile minimal
+
+      - name: Setup rust cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Build contracts
+        run: |
+          ./contracts/context-config/build.sh
+          ./contracts/proxy-lib/build.sh
+
+      - name: Build binaries
+        run: |
+          cargo build -p meroctl
+          cargo build -p merod
+          cargo build -p e2e-tests
+
+      - name: Run e2e tests
+        run: |
+          ./target/debug/e2e-tests \
+            --input-dir ./e2e-tests/config \
+            --output-dir ./e2e-tests/corpus \
+            --merod-binary ./target/debug/merod \
+            --meroctl-binary ./target/debug/meroctl