Install dependencies without debug symbols

[doganulus]

The current installation scripts build dependencies from source using default compilation flags. By default, these flags produce debug binaries, which significantly increase disk usage.

Building source dependencies (RISC-V toolchain, Spike, QEMU, Verilator) using release flags would reduce binary size and keep installations leaner.

[jordancarlin]

Reducing the installation size isn't a high priority for us right now, but I'd be happy to review a PR that updates the build flags if you wanted to work on this.