Update Rust crate tonic to v0.12.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tonic	dependencies	patch	=0.12.2 -> =0.12.3

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Release Notes

hyperium/tonic (tonic)

v0.12.3

Compare Source

Features

• server: Added support for grpc max_connection_age (#​1865)
• build: Add #[deprecated] to deprecated client methods (#​1879)
• build: plumb skip_debug through prost Builder and add test (#​1900)

Bug Fixes

• build: Revert "fix tonic-build cargo build script outputs (#​1821)" which accidentally increases MSRV (#​1898)
• server: ignore more error kinds in incoming socket stream (#​1885)
• transport: do not shutdown server on broken connections (#​1948)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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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
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path proxy/Cargo.toml --workspace
error: failed to parse manifest at `/tmp/renovate/repos/github/AreaLayer/rust-l402/proxy/Cargo.toml`

Caused by:
  no targets specified in the manifest
  either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present