feat(checker): add fish checker

[ffontaine]

No description provided.

[terriko]

Bumped the branch on this one just to see where the tests are at today.

[ffontaine]

They fails due to OSV on:

=========================== short test summary info ============================
FAILED test/test_source_purl2cpe.py::TestSourceOSV::test_db_contents[1-False] - AssertionError: Missing elements in database: ['pkg:1234n/minicms', 'pkg:13thmonkey/udfclient', 'pkg:23systems/lightbox-plus-for-wordpress', 'pkg:2glux/sexypolling', 'pkg:2pisoftware/cmfive']
assert not ['pkg:1234n/minicms', 'pkg:13thmonkey/udfclient', 'pkg:23systems/lightbox-plus-for-wordpress', 'pkg:2glux/sexypolling', 'pkg:2pisoftware/cmfive']
=========== 1 failed, 295 passed, 2043 skipped in 137.43s (0:02:17) ============

[brandonmarken]

The regex "fish-([0-9]+.[0-9]+.[0-9]+)" doesn't catch the packages fish_3.1.2-3+deb11u1_amd64.deb or fish_3.1.0-1_x86_64.ipk because they have a "" after the string "fish" and your regex only matches if a "-" follows "fish". I tried this regex "fish-|([0-9]+.[0-9]+.[0-9]+)" and it seems to catch all 4 packages.

[ffontaine]

All tests passed, so IMHO no need to update regex

[brandonmarken]

I talked to @terriko and it looks like using a python regex checker may not match exactly what's going on when you're running it. So I'm going to build it today and get back to you after I've checked it. Thanks for your patience

[ffontaine]

All tests passed and @brandonmarken approved the changes so merging