Don't warn about broad globs in vendor folders

[philipp-spiess]

After shipping the new warning that prevents unexpected scanning of all dependencies in 3.4.8, we noticed that it was firing more often than we wanted to.

The heuristics we added works by finding broad glob patterns (once that contain /**/) and when those are found and are the sole pattern used to match a file of a known-large directory, we were showing the warning. The motivation for this is that we have seen time and time again that an incorrect config like /**/*.js can cause recursive scans through all dependencies including many minified libraries which greatly impacts performance.

In #14140, we were adding two known-large directory names:

• node_modules (used by npm)
• vendor (used by PHP)

The problem with the vendor name though is that it is more generic than we would like it and there are legit use cases to have a folder named vendor inside your component folder. Additionally, PHP vendors behave a bit differently and it's not super common to have minified build files in that folder (which is one of the main reasons for the slow builds). Because of this, we decided to revert the change for vendor and only scan for node_modules going forward.