ci: update the security-scanner gha token (#5112)

* ci: update the security-scanner gha token

* security-scan : fix codeql download

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Co-authored-by: mickael e <mickael@hashicorp.com>

.github/workflows/security-scan.yml

@@ -42,7 +42,7 @@ jobs:
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
       with:
         repository: hashicorp/security-scanner
-        token: ${{ secrets.HASHIBOT_PRODSEC_GITHUB_TOKEN }}
+        token: ${{ secrets.PRODSEC_SCANNER_READ_ONLY }}
         path: security-scanner
         ref: main