feat(bundler): add git refs support

[Djiit]

Changes

Added git refs support for the bundler manager.

Context

Fixes #30990

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

[Djiit]

Hey team, do you need anything from me to get this merged? Thank you 🙏 cc @rarkins

[rarkins]

Merged failed with this:

> tsc "--noEmit"

Error: lib/modules/manager/bundler/extract.ts(172,28): error TS23[39](https://github.com/renovatebot/renovate/actions/runs/11952139756/job/33317261723#step:4:40): Property 'registryUrl' does not exist on type 'string'.
Error: lib/modules/manager/bundler/extract.ts(173,45): error TS2339: Property 'registryUrl' does not exist on type 'string'.
Error: lib/modules/manager/bundler/extract.ts(176,28): error TS2339: Property 'sourceName' does not exist on type 'string'.
Error: lib/modules/manager/bundler/extract.ts(177,55): error TS2339: Property 'sourceName' does not exist on type 'string'.

Not sure why it was caught in the merge queue and not in PR.

[rarkins]

Now it failed here!

[rarkins]

There now seems to be a refactoring of the existing and non git refs logic too?

[Djiit]

There now seems to be a refactoring of the existing and non git refs logic too?

Hey @rarkins , @viceice suggested I moved the regex at the module levels, so I did this for all the regexes here.
Other changes are also here to align practices, without any functional changes. Anything you'd like me to remove?

[Djiit]

Also I'd need your help on the CI: I did not added any snapshot, just updated the existing ones (as some fixtures were already containing what was not yet parsed a gitrefs). How can I make this pass?