chore(deps): update github/codeql-action action to v2.20.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	Pending
github/codeql-action	action	patch	v2.20.2 -> v2.20.3	v2.20.4

Review

• [ ] Updates have been tested and work
• [ ] If updates are AWS related, versions match the infrastructure (e.g. Lambda runtime, database, etc.)

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Release Notes

github/codeql-action (github/codeql-action)

### [`v2.20.3`](https://togithub.com/github/codeql-action/compare/v2.20.2...v2.20.3) [Compare Source](https://togithub.com/github/codeql-action/compare/v2.20.2...v2.20.3)

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Configuration

📅 Schedule: Branch creation - "every weekend" in timezone America/Montreal, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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[patheard]

• https://github.com/cds-snc/platform-core-services/issues/424