Upgrade package versions

[Checkroth]

There is dependency mismatch for serde within different packages.

Currently, Oxidiizer will not compile. This can be reproduced by creating a completely new project and adding oxidizer as its only dependency.

error[E0603]: module `export` is private
   --> refinery-core-0.3.2/src/runner.rs:11:12
    |
11  | use serde::export::Formatter;
    |            ^^^^^^ private module
    |
note: the module `export` is defined here
   --> serde-1.0.125/src/lib.rs:275:5
    |
275 | use self::__private as export;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0603`.
error: could not compile `refinery-core`

Its the same issue reported here: #71.

Upgrading serde-dependent packages to their latest versions allows the project to compile.