ci: add OSSAR static analysis workflow

Signed-off-by: Andres Correa Casablanca <andreu@kindspells.dev>

.github/workflows/ossar.yml

@@ -0,0 +1,51 @@
+# This workflow integrates a collection of open source static analysis tools
+# with GitHub code scanning. For documentation, or to provide feedback, visit
+# https://github.com/github/ossar-action
+name: OSSAR
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "main" ]
+  schedule:
+    - cron: '34 19 * * 5'
+
+permissions:
+  contents: read
+
+jobs:
+  OSSAR-Scan:
+    # OSSAR runs on windows-latest.
+    # ubuntu-latest and macos-latest support coming soon
+    permissions:
+      contents: read # for actions/checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+    runs-on: windows-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Ensure a compatible version of dotnet is installed.
+    # The [Microsoft Security Code Analysis CLI](https://aka.ms/mscadocs) is built with dotnet v3.1.201.
+    # A version greater than or equal to v3.1.201 of dotnet must be installed on the agent in order to run this action.
+    # GitHub hosted runners already have a compatible version of dotnet installed and this step may be skipped.
+    # For self-hosted runners, ensure dotnet version 3.1.201 or later is installed by including this action:
+    # - name: Install .NET
+    #   uses: actions/setup-dotnet@v2
+    #   with:
+    #     dotnet-version: '3.1.x'
+
+      # Run open source static analysis tools
+    - name: Run OSSAR
+      uses: github/ossar-action@v1
+      id: ossar
+
+      # Upload results to the Security tab
+    - name: Upload OSSAR results
+      uses: github/codeql-action/upload-sarif@v2
+      with:
+        sarif_file: ${{ steps.ossar.outputs.sarifFile }}