Create CI (back-end)

[mansogf]

Description

This issue represents an extension of #95 that will be split into four different issues.

• Create CI (back-end);
• Create CI (front-end);
• Create CD (back-end);
• Create CD (front-end);

This one is the Create CI (back-end)

Steps

• [x] Build;
• [ ] Test;
• [x] Lint

[mansogf]

This issue is dependent on https://github.com/lappis-unb/BotFlowAPI/pull/30 . Thus, first, the PR must be accepted to proceed with the test job of the CI pipeline.