Move to Github Actions and Integrate the codecov to the Portal

[satya7289]

Description

As a Developer,
I need to check how much code is covered under testing,
so I suggest integrating codecov for this.

Mocks

Able to see the codecov reports on the PR

Update [Required]

• requirements.txt
• .travis.yml

Definition of Done

• All of the required items are completed.
• Approval by 1 mentor.

Estimation

1 hours

[satya7289]

If this issue is approved, let me know I want to work on this.

[SanketDG]

@satya7289 We have been meaning to move away from Travis and move to GH actions, mentorship-backend already did this

Do you want to go ahead and do that? You will have to change the issue title then!