The --auth-token argument is hidden from the sentry-cli monitors run subcommand since the command uses DSN authentication, however passing the argument is still possible (it is simply ignored).

However, providing this argument causes a panic with a not-very-user-friendly message, since the argument was defined here without the auth token parser, and we attempt to read the auth token as an AuthToken.

This PR fixes the bug.

Fixes #2170

The anyhow crate we use for error handling adds stack backtraces errors whenever certain standard environment variables are set (e.g. when RUST_BACKTRACE=1).

Modify our error-printing logic to include these stack backtraces when printing errors that crash Sentry CLI, so that users can add this information to bug reports.

Closes #2187

`commands::main` does not return because it explicitly calls `std::process::exit`. Update `commands::main`'s function signature to indicate this.

Sentry CLI's `main` function calls `commands::main`, which does not return, since it calls `std::process::exit`. Update the function signature to reflect this.

Statically link the CRT on Windows. This eliminates Sentry CLI's
dependency on `VCRUNTIME140.dll`, allowing Sentry CLI to be run on a
clean install of Windows, without requiring any external dependencies.

Fixes #2193
Closes #2201

Developers working on Sentry CLI should be able to choose their own
editor settings.