Add scanning workflow (#304)

.github/workflows/scan.yml

@@ -0,0 +1,74 @@
+name: Scan
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "main"
+  pull_request_target:
+    types: [opened, synchronize]
+
+jobs:
+  check-run:
+    name: Check PR run
+    uses: bitwarden/gh-actions/.github/workflows/check-run.yml@main
+
+  sast:
+    name: SAST scan
+    runs-on: ubuntu-22.04
+    needs: check-run
+    permissions:
+      contents: read
+      pull-requests: write
+      security-events: write
+
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Scan with Checkmarx
+        uses: checkmarx/ast-github-action@f0869bd1a37fddc06499a096101e6c900e815d81 # 2.0.36
+        env:
+          INCREMENTAL: "${{ contains(github.event_name, 'pull_request') && '--sast-incremental' || '' }}"
+        with:
+          project_name: ${{ github.repository }}
+          cx_tenant: ${{ secrets.CHECKMARX_TENANT }}
+          base_uri: https://ast.checkmarx.net/
+          cx_client_id: ${{ secrets.CHECKMARX_CLIENT_ID }}
+          cx_client_secret: ${{ secrets.CHECKMARX_SECRET }}
+          additional_params: |
+            --report-format sarif \
+            --filter "state=TO_VERIFY;PROPOSED_NOT_EXPLOITABLE;CONFIRMED;URGENT" \
+            --output-path . ${{ env.INCREMENTAL }}
+
+      - name: Upload Checkmarx results to GitHub
+        uses: github/codeql-action/upload-sarif@662472033e021d55d94146f66f6058822b0b39fd # v3.27.0
+        with:
+          sarif_file: cx_result.sarif
+
+  quality:
+    name: Quality scan
+    runs-on: ubuntu-22.04
+    needs: check-run
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0
+          ref: ${{  github.event.pull_request.head.sha }}
+
+      - name: Scan with SonarCloud
+        uses: sonarsource/sonarcloud-github-action@383f7e52eae3ab0510c3cb0e7d9d150bbaeab838 # v3.1.0
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          args: >
+            -Dsonar.organization=${{ github.repository_owner }}
+            -Dsonar.projectKey=${{ github.repository_owner }}_${{ github.event.repository.name }}