This version of the CodeQL Action was deprecated on January 18th, 2023, and is no longer updated or supported. For better performance, improved security, and new features, upgrade to v2. For more information, see https://github.blog/changelog/2023-01-18-code-scanning-codeql-action-v1-is-now-deprecated/

Code Scanning could not process the submitted SARIF file: could not convert rules: invalid security severity value, is not a number: null

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, github/codeql-action/upload-sarif@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/