[Improvement]: Use Secret Key from GT

[azooz2003-bit]

Description

Focus on receiving GT's secret key (talk to GT admins) for Canvas. This will allow us to log into Canvas via GT's SSO. Replace all traces of the personal access token with the token received from this new login method.

Relevant Resources

(Feature Owner, Developer) Attach links to resources such as Figma files, technical documentation, etc.

• API Docs: Oauth2

Child Issues

(Developer) Add child issues (technical or high level) that will help you modularize your implementation this feature.

• Task 1 ...
• Task 2 ...

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Implementation Plan (optional)

(Developer) Write an implementation plan here, or attach a link to a document containing it.