Add SDK healthcheck (#22)

Author: biglovisa

Diff for: .github/workflows/healthcheck.yml

@@ -0,0 +1,26 @@
+name: Health check
+on:
+  schedule:
+    - cron: '0 17 * * *'
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    name: Python Library tests
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.6'
+      - name: Run tests
+        env:
+          SANDBOX_API_KEY: ${{ secrets.SANDBOX_API_KEY }}
+        run: make test
+        uses: kpritam/slack-job-status-action@v1
+        with:
+          job-status: ${{ job.status }}
+          slack-bot-token: ${{ secrets.SLACK_BOT_TOKEN }}
+          channel: github-actions