External test for Bleeps

[cameel]

Part of #5956.
Depends on #12530. Don't merge until that PR is merged.

This adds an external test for Bleeps.

The project has an unusual structure compared to the others we have integrated so far (it's a monorepo with pnpm as the recommended package manager) so it was a bit tricky to get just the part we need to build and tests to run. The main branch also seems to be broken right now (wighawag/bleeps#1). Fortunately there's a tag close to the top commit (bleeps_migrations) so I'm using that for now.

Note that the extra parameters my PR adds to neutralize_package_json_hooks are not used. I originally needed them for the common-lib library in the repo but in the and I was able to drop that. They may come in handy later though so I want to keep that change anyway.

[ekpyron]

FYI: (probably trivial) merge conflicts to be resolved after I merged the first one

[cameel]

Conflicts solved. As I said in, #12530 (comment), I'm going to put this PR on top of #12530 now.

[ekpyron]

Wait, why does the commit of #12350 still show up here after that's merged? Ah, I guess that's what happens, if you don't also switch the base branch on github? Anyways, the test run seems to fail, so I'll have another look next week.

[cameel]

Yeah, sorry looks like I did forget to switch the base branch :)

It's fails because the maintainer fixed wighawag/bleeps#1 and I pushed a commit to switch it to main, hoping that it now passes tests. I think it would if not for the fact that the project now contains one 0.4.19 contract that won't compile with 0.8.11 :(

So back to the tag we go. I'll revert it to the previous version.

[cameel]

Fixed. It should pass tests now.