False positive in CWE-829 /UntrustedCheckoutMedium.ql

**Description of the false positive**
When there is a workflow that is triggered by a pull_request, this check considers the called workflow to be privileged even though it is not.

**Code samples or links to source code**

Triggered Workflow: https://raw.githubusercontent.com/llvm/llvm-project/refs/heads/main/.github/workflows/release-binaries-all.yml
Called Workflow: https://raw.githubusercontent.com/llvm/llvm-project/refs/heads/main/.github/workflows/release-binaries.yml

**URL to the alert on GitHub code scanning (optional)**

https://github.com/llvm/llvm-project/security/code-scanning/1828

Start with the CWE-829 /UntrustedCheckoutMedium.ql query and review the triggered and called workflow examples linked in the report. Compare the query result with the pull_request-triggered workflow behavior and the linked code-scanning alert. Done means the called workflow is no longer incorrectly reported as privileged.

索引モデルが issue の本文から書いたものです。