feat: add codeql workflow for javascript and python

[harmeetsingh11]

Issue that this pull request solves

Closes: #8

Proposed changes

Files added

• .github/workflows/codeql.yml

To run this workflow you need to enable the following permission:

1. Go to your project repository settings
2. On left pane > Actions > General

3. Scroll down and Go to Workflow permissions > select "Read and write permissions"

4. Click save and its done.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (Documentation content changed)
• Other (please describe):

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new warnings

@1010varun please review this PR.
Thanks

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[harmeetsingh11]

@1010varun please add iwoc label and difficulty level label to the PR, otherwise my points won't count.