Fix SARIF and duplication issues

[ls-valentinas-bakaitis]

This PR fixes two issues:
#90
and
#15 - while this has been closed as completed - I don't see any changes related to it and the behaviour still seems to be in the main branch. This PR fixes the issue.

[ajinabraham]

can you send the changes against libsast as well?

[ls-valentinas-bakaitis]

@ajinabraham I have raised a pull request for libsast here: https://github.com/ajinabraham/libsast/pull/46/files.

[ls-valentinas-bakaitis]

@ajinabraham this pull request has some changes that shouldn't be merged to main (because I ended up switching to our own fork of libsast), but you can probably cherry pick 291da9ffe83fcbb78267f2cb739d2ccb80ba7540 and 3d3fca46da11a05f71d57425f38d18e360c263d3 to get the needed changes. Then once Libsast PR is merged, you can update libsast.

[ajinabraham]

Thanks, I am working on this, will take a look and include the changes appropriately

[ls-valentinas-bakaitis]

@ajinabraham thank you, that is much appreciated! If you have any questions or need any help with these changes - feel free to reply here.

[ajinabraham]

Can you update the PR to use latest libsast?

[valentinas]

Yep, will do shortly :)

[ls-valentinas-bakaitis]

@ajinabraham does this look ok?