Add a CodeQL static analysis task

[Aniruddh25]

Why make this change?

• CodeQL provides advanced analysis capabilities for data flow and control flow in the source code for discovering vulnerabilities See https://codeql.github.com/

What is this change?

• Adds a new task in static analysis pipeline. It increases the build time by ~ 13min but since the test pipelines(run in parallel) take longer than this, the increment due to this task is acceptable.
• Found a test code not meeting requirements - fix is to use at least 2048 as the key size for RSA.

How was this tested?

• Ran the pipeline.