Add FOSSA workflow to enable license scanning

.github/workflows/fossa-license-scan.yml

@@ -0,0 +1,24 @@
+# More information on this workflow can be found here: https://stackoverflow.com/c/intercom/questions/1270
+
+name: FOSSA License Scan
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  fossa:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Attempt build
+        uses: intercom/attempt-build-action@main
+        continue-on-error: true
+      - name: Run FOSSA
+        uses: intercom/fossa-action@main
+        with:
+          fossa-api-key: ${{ secrets.FOSSA_API_KEY }}
+          fossa-event-receiver-token: ${{ secrets.FOSSA_EVENT_RECEIVER_TOKEN }}
+          datadog-api-key: ${{ secrets.DATADOG_API_KEY }}