Created GitHub Action workflow to run tests

.github/workflows/test.yml

@@ -0,0 +1,29 @@
+name: Run Moonstream DAO tests
+
+on:
+  push:
+    branches:
+      - cicd
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        python-version: [3.9]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Upgrade pip
+        run: pip install -U pip
+      - name: Install dev dependencies
+        run: pip install -e .[dev]
+      - name: Black syntax check
+        run: black --check moonworm/
+      - name: Run unit tests
+        run: sh test.sh