added sarif-tools installation

Author: Saumya-R

.github/workflows/codeql-multiple-repo-scan.yml

@@ -41,6 +41,10 @@ jobs:
     steps:
       - name: Checkout central repository
         uses: actions/checkout@v4
+      - name: Install sarif-tools for HTML report generation
+        run: |
+          python3 -m pip install --upgrade pip
+          pip3 install sarif-tools
       # Add coding standard packages and dependencies
       - name: Cache repository checkouts
         uses: actions/cache@v4