Fix windows linker errors

[coolreader18]

Description of Changes

My guess as to the problem was that there were static libs in the dependency graph that were wanting to statically link to libc functions, but rustc didn't know we wanted to link libc statically - so adding +crt-static fixes it.

API and ABI breaking changes

Expected complexity level and risk

1

Testing

• Builds successfully on windows now.

[rekhoff]

Tested the following:
cargo build - Passed
cargo run -p spacetimedb-standalone - Passed
cargo run -p spacetimedb-cli - Passed
cargo run -p spacetimedb-update - Passed
Currently not all tests pass when cargo test is ran, but they seem to fail at test cli::self_install::tests::ensure_script_help_is_up_to_date which is part of the cargo test -p spacetimedb-update test. I've confirmed this was still failing at 1.4.0's release on both my Windows system, so shouldn't be a blocker here. Just a note for the future. (Recorded the issue in #3420)
With the above tests and the CI testing passing, I'm approving this change.