build: Add ci profile that uses `--release`

As we add more rust crates in performance-critical places, we run into some performance issues with debug builds. This makes it hard to get a good feel for the performance of the application, as something may be slow simply because it's not been optimized by the compiler.

This commit adds a ci profile to our meson options, and adjusts our CI configuration to use it. Regular builds should continue to use the development profile.