Allow clean-parser 2.

What does this MR do?

Allow clean-parser 2.

The changes to clean-parser result in a different behavior when running `nitrile fetch', when nitrile determines the ctags of the package. Which results in similar errors to the ones seen in the property tests of iTasks (https://gitlab.com/clean-and-itasks/itasks-sdk/-/jobs/7349035900 r3006). Therefore nitrile should be upgraded to base 3 to use the new lib-compiler and it is required to allow clean-parser 2 here.

Changes to public APIs

N/A

Author's checklist (required)

• If bugs have been solved, tests have been added (guidelines)
• A changelog entry has been added (guidelines)
• Newly added code is documented (guidelines)
• Newly added code has a style consistent with the rest of the repository
• Intermediate commits compile (use git rebase -i main if not)

Related issues