Add the CI pipeline

[Chih-En Lin]

We need to add the CI pipeline to test the code.
See more for the CI pipeline here:

• https://resources.github.com/ci-cd/

We can reference the setup from lkmpg.

[Chih-En Lin]

For the detect part, we need to test :

• find_watchpoint()
• check_access()
• create_watchpoint() (the function name may change in future)

[Chih-En Lin]

I add the CI pipeline to support us doing the unit testing.
The first successful testing is here:

• https://github.com/linD026/ucsan/actions/runs/2501227627