feat: Support OAuth [MFLP-10]

[pnadolny13]

Currently the tap only supports API tokens https://developer.atlassian.com/cloud/jira/platform/basic-auth-for-rest-apis/#get-an-api-token. We should add support for OAuth.

[imprvhub]

Hi! I would like to work on this issue. I have experience with Python, APIs and OAuth implementations. I'll follow the OAuth documentation from Atlassian to implement this feature.

[imprvhub]

Can you guys assign me to this issue?

[edgarrmondragon]

Can you guys assign me to this issue?

Done!

[imprvhub]

Hi! I see that I'm not assigned to this issue but would still like to contribute. Would it be okay if I work on it and submit a PR? Let me know!

[edgarrmondragon]

Hi! I see that I'm not assigned to this issue but would still like to contribute. Would it be okay if I work on it and submit a PR? Let me know!

Sorry about that, I've assigned you this time. Of course PRs are welcome regardless 😄