feat: add codeql workflow

[harmeetsingh11]

Related Issue

Closes #85

Files added

• .github/workflows/codeql.yml

Screenshots

Checklist

• [x] My code adheres to the established style guidelines of the project.
• [x] I have included comments in areas that may be difficult to understand.
• [x] Changes done by me have not introduced any new warnings.
• [x] I have conducted a self-review of my code.

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