Add Fortify strings check to CI

[LucaGuerra]

#1880 should have been caught in CI. It happened to be detected because @FedeDP ran the test suite on a machine that had fortify turned on and strlcpy() was a checked version instead of the regular one that is embedded in the libs repo. We need to look into how to enable the same checks in CI as well (in the ASan build, so we can get a stack trace)

[FedeDP]

/milestone 0.18.0

This is great, thanks for opening Luca! Big enormous huge +1 from me.

[LucaGuerra]

Not blocking for 0.18.0, but it'd be nice to have it. I briefly took a look at it at some point and it looks like we need to implement it ourselves sadly

/milestone 0.19.0