add wf for contracts tests

.github/workflows/contracts-tests.yml

@@ -0,0 +1,70 @@
+name: Contracts CI - Tests
+
+on:
+  workflow_dispatch:
+  pull_request:
+    paths-ignore:
+      - 'contracts/**'
+      - 'docker/**'
+  push:
+    paths-ignore:
+      - 'contracts/**'
+      - 'docker/**'
+    branches: [master]
+
+env:
+  CARGO_TERM_COLOR: always
+  GEAR_VERSION: 1.4.1
+
+defaults:
+  run:
+    working-directory: contracts
+
+permissions:
+  contents: write
+  id-token: write
+  pages: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  all:
+    name: Tests
+    runs-on: self-hosted
+    container:
+      image: ghcr.io/gear-foundation/dapps/ci-rust:latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly
+          targets: wasm32-unknown-unknown
+          components: clippy, rustfmt
+
+      - name: Prepare Gear Binary
+        run: |
+          mkdir -p target/tmp
+          wget -qO- https://get.gear.rs/gear-v${{ env.GEAR_VERSION }}-x86_64-unknown-linux-gnu.tar.xz| tar xJ -C target/tmp
+
+      # mandatory tasks
+      - name: Fmt
+        run: 'cargo +nightly fmt --all -- --config imports_granularity=Crate,edition=2021'
+      - name: Clippy
+        run: 'cargo clippy --release --workspace --all-targets --all-features -- -D warnings'
+
+      # Only on push to master
+      - name: On Push to master
+        if: github.ref != 'refs/heads/master'
+        run: |
+          cargo test --release --workspace
+          cargo test --workspace
+
+      # Only on push to PR
+      - name: On Push to Pull Request
+        if: github.ref != 'refs/heads/master'
+        run: cargo test --release --workspace