Update Rust crate tower to 0.5.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tower	dev-dependencies	minor	0.4.13 -> 0.5.1

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Warning

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Release Notes

tower-rs/tower (tower)

v0.5.1: tower 0.5.1

Compare Source

• Fix minimum version of tower-layer dependency (#​787)

v0.5.0: tower 0.5.0

Compare Source

Fixed

• util: BoxService is now Sync (#​702)

Changed

• util: Removed deprecated ServiceExt::ready_and method and ReadyAnd
  future (#​652)
• retry: Breaking Change retry::Policy::retry now accepts &mut Req and &mut Res instead of the previous mutable versions. This
  increases the flexibility of the retry policy. To update, update your method signature to include mut for both parameters. (#​584)
• retry: Breaking Change Change Policy to accept &mut self (#​681)
• retry: Add generic backoff utilities (#​685)
• retry: Add Budget trait. This allows end-users to implement their own budget and bucket implementations. (#​703)
• reconnect: Breaking Change Remove unused generic parameter from Reconnect::new (#​755)
• ready-cache: Allow iteration over ready services (#​700)
• discover: Implement Clone for Change (#​701)
• util: Add a BoxCloneServiceLayer (#​708)
• rng: use a simpler random 2-sampler (#​716)
• filter: Derive Clone for AsyncFilterLayer (#​731)
• general: Update IndexMap (#​741)
• MSRV: Increase MSRV to 1.63.0 (#​741)

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: src/abacus/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path src/abacus/server/Cargo.toml --package tower@0.4.13 --precise 0.5.1
    Updating crates.io index
error: failed to select a version for the requirement `tower = "^0.4.1"`
candidate versions found which didn't match: 0.5.1
location searched: crates.io index
required by package `hyper-util v0.1.8`
    ... which satisfies dependency `hyper-util = "^0.1.3"` (locked to 0.1.8) of package `axum v0.7.7`
    ... which satisfies dependency `axum = "^0.7.7"` (locked to 0.7.7) of package `server v0.0.0 (/tmp/renovate/repos/github/adeira/universe/src/abacus/server)`