chore: ignore compile commands

[XavierChanth]

a local file which contains commands for clangd to resolve during development

- What I did

• This file is generated at build time by clang, and contains information based on the local system, so it shouldn't be committed
• clangd (the server) uses it to know where to find symbols and stuff.

- How I did it

- How to verify it

- Description for the changelog chore: ignore compile commands