Upgrade clang-format from version 15 to 19

[nyllet]

Issue

https://github.com/Project-OSRM/osrm-backend/issues/7249

Tasklist

• [ x] CHANGELOG.md entry (How to write a changelog entry)
• [ ] update relevant Wiki pages
• [ ] add tests (see testing documentation)
• [ ] review
• [ ] adjust for comments

Requirements / Relations

none