ci: fix pipeline semgrep installation

Author: dduzgun-security

.github/workflows/security-scan.yml

@@ -37,6 +37,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+        with:
+          python-version: 3.x
       - uses: actions/setup-go@f111f3307d8850f501ac008e886eec1fd1932a34 # v5.3.0
         with:
           cache: ${{ contains(runner.name, 'Github Actions') }}
@@ -51,6 +54,11 @@ jobs:
           path: security-scanner
           ref: main
 
+      - name: Install Security Scanner Semgrep Plugin Dependency
+        shell: bash
+        run: |
+          python3 -m pip install semgrep
+
       - name: Scan
         id: scan
         uses: ./security-scanner