Add GitHub actions to enforce code style

[lacabra]

After having implemented #14, configure the CI through GitHub Actions to enforce the code style upon committing files to the repo.

[rachita19082]

@lacabra I would like to work on this issue. Please assign it to me.

[DivyanshiSingh]

hey, @lacabra Is this issue open to work. I would like to work on it.

[rachita19082]

Hi @DivyanshiSingh, even though this has not been assigned to me yet, I had started working on this issue. I will make a PR for this as soon as my previous pull request for adding and configuring the setup is merged.

[DivyanshiSingh]

I thought that everyone has to follow the guidelines: DPGAlliance/publicgoods-candidates#473

[rachita19082]

@DivyanshiSingh Yes, I have followed all the guidelines. I claimed this issue only after I had finished working on the previous issue and the previous one has been approved as well.

[lacabra]

@rachita19082: while I appreciate your numerous contributions, I had not assigned this PR to you for a reason: to give the rest of participants a fair chance to contribute. Everyone else is waiting for PR to get assigned to them, so kindly play by the rules. Thank you.

Since the work is already done, this PR will no longer be assigned, and can be considered closed (though it will not be formally closed until the corresponding PR is merged, which is awaiting an unrelated dependency)

[rachita19082]

@lacabra @DivyanshiSingh I apologize for not waiting for the PR to be assigned. I have understood, I will wait for it to be assigned before working on any further issues.