Speed up tests by 10x by compiling dependencies with optimizations.

[obi1kenobi]

In dev and test configurations, compile all dependencies with optimizations enabled, but still checking debug assertions and overflows.

This produces a more than 10x speedup on tests, since the tests check dozens of test crates with dozens of Trustfall queries.

[obi1kenobi]

For some reason, I couldn't get the same speedup by enabling optimizations for only trustfall_core, trustfall_rustdoc, and trustfall-rustdoc-adapter. It also didn't look like cargo's rebuild detection was correctly realizing which dependencies' settings had changed: adding or changing overrides for one of those packages didn't always cause a rebuild of that package.

The other thing that wasn't clear is whether overrides for trustfall-rustdoc-adapter would apply to all major versions being included (we have 4), or whether the override was just not applying to anything and needed to instead be specified individually per-version. The cargo docs didn't seem to say one way or the other. Possible documentation issue?

cc @epage, perhaps of interest.

[obi1kenobi]

This is my first time editing profile settings, so I'd love a review from @epage just in case I messed something up.

[epage]

Eh, I don't touch this much either