chore(deps): bump tower-test from 0.3.0 to 0.4.0

[dependabot]

Bumps tower-test from 0.3.0 to 0.4.0.

Release notes

Sourced from tower-test's releases.

Tower 0.4.0

This is a major breaking release including a large number of changes. In particular, this release updates tower to depend on Tokio 1.0, and moves all middleware into the tower crate. In addition, Tower 0.4 reworks several middleware APIs, as well as introducing new ones.

This release does not change the core Service or Layer traits, so tower 0.4 still depends on tower-service 0.3 and tower-layer 0.3. This means that tower 0.4 is still compatible with libraries that depend on those crates.

Added

• make: Added MakeService::into_service and MakeService::as_service for converting MakeServices into Services (#492)
• steer: Added steer middleware for routing requests to one of a set of services (#426)
• util: Added MapRequest middleware and ServiceExt::map_request, for applying a function to a request before passing it to the inner service (#435)
• util: Added MapResponse middleware and ServiceExt::map_response, for applying a function to the Response type of an inner service after its future completes (#435)
• util: Added MapErr middleware and ServiceExt::map_err, for applying a function to the Error returned by an inner service if it fails (#396)
• util: Added MapResult middleware and ServiceExt::map_result, for applying a function to the Result returned by an inner service's future regardless of whether it succeeds or fails (#499)
• util: Added Then middleware and ServiceExt::then, for chaining another future after an inner service's future completes (with a Response or an Error) (#500)
• util: Added AndThen middleware and ServiceExt::and_then, for chaining another future after an inner service's future completes successfully (#485)
• util: Added layer_fn, for constructing a Layer from a function taking a Service and returning a different Service (#491)
• util: Added FutureService, which implements Service for a Future whose Output type is a Service (#496)
• util: Added BoxService::layer and UnsyncBoxService::layer, to make constructing layers more ergonomic (#503)
• layer: Added Layer impl for &Layer (#446)
• retry: Added Retry::get_ref, Retry::get_mut, and Retry::into_inner to access the inner service (#463)
• timeout: Added Timeout::get_ref, Timeout::get_mut, and Timeout::into_inner to access the inner service (#463)
• buffer: Added Clone and Copy impls for BufferLayer (#493)
• Several documentation improvements (#442, #444, #445, #449, #487, #490, #506])

Changed

... (truncated)

Commits

• ca685ae test: update tower-test to v0.4 (#512)
• 992702f prepare Tower 0.4 for release (#511)
• bebe677 steer: Add more true to life example for Steer docs (#506)
• f171390 util: Add and_then combinator (#485)
• 3b7c91e make all combinator futures opaque (#509)
• 2a7d47a rewrite tower::filter (#508)
• b7a7c28 util: Remove ServiceExt::ready (#507)
• 3bdaae9 Fix clippy warnings (#505)
• fdd66e5 docs pass (#490)
• bef0ade util: Add then combinator (#500)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[fanatid]

Blocked by #5175

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.