Move to minimum working hyper util

[xd009642]

If hyper-util 0.1.11 is in the build tree then you get the following error:

error[E0599]: no method named `watcher` found for struct `GracefulShutdown` in the current scope
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.4.1/src/server.rs:368:45
    |
368 |                 let watcher = graceful_util.watcher();
    |                                             ^^^^^^^
    |
help: there is a method `watch` with a similar name, but with different arguments
   --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/hyper-util-0.1.11/src/server/graceful.rs:32:5
    |
32  |     pub fn watch<C: GracefulConnection>(&self, conn: C) -> impl Future<Output = C::Output> {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

For more information about this error, try `rustc --explain E0599`.
error: could not compile `warp` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...
Error: Process completed with exit code 101.

This goes away with hyper-util 0.1.12 so I've set that in the manifest so if a suer is on an earlier version it'll upgrade (and not impact anyone on a newer version)

[xd009642]

I can also just set it to the latest hyper util but I figured I'd be a bit more cautious in case there was an MSRV change or something unexpected

[tyranron]

http-body-util should also be bumped to 0.1.2, because:

 error[E0432]: unresolved import `http_body_util::BodyDataStream`
  --> /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/warp-0.4.0/src/filters/body.rs:14:5
   |
14 | use http_body_util::BodyDataStream;
   |     ^^^^^^^^^^^^^^^^--------------
   |     |               |
   |     |               help: a similar name exists in the module: `BodyStream`
   |     no `BodyDataStream` in the root