build(deps): Bump prost-build from 0.12.3 to 0.12.4 (#2877)

* build(deps): Bump prost-build from 0.12.3 to 0.12.4

Bumps [prost-build](https://github.com/tokio-rs/prost) from 0.12.3 to 0.12.4.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.12.3...v0.12.4)

---
updated-dependencies:
- dependency-name: prost-build
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* regenerate protobuf

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Oliver Gould <ver@buoyant.io>

Author: dependabot[bot]

Cargo.lock

@@ -799,15 +799,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "home"
-version = "0.5.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
-dependencies = [
- "windows-sys 0.52.0",
-]
-
 [[package]]
 name = "hostname"
 version = "0.3.1"
@@ -2708,9 +2699,9 @@ dependencies = [
 
 [[package]]
 name = "prost-build"
-version = "0.12.3"
+version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c55e02e35260070b6f716a2423c2ff1c3bb1642ddca6f99e1f26d06268a0e2d2"
+checksum = "80b776a1b2dc779f5ee0641f8ade0125bc1298dd41a9a0c16d8bd57b42d222b1"
 dependencies = [
  "bytes",
  "heck",
@@ -2725,7 +2716,6 @@ dependencies = [
  "regex",
  "syn",
  "tempfile",
- "which",
 ]
 
 [[package]]
@@ -3626,18 +3616,6 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
-[[package]]
-name = "which"
-version = "4.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87ba24419a2078cd2b0f2ede2691b6c66d8e47836da3b6db8265ebad47afbfc7"
-dependencies = [
- "either",
- "home",
- "once_cell",
- "rustix",
-]
-
 [[package]]
 name = "widestring"
 version = "1.1.0"

linkerd/transport-header/src/gen/transport.l5d.io.rs

@@ -1,3 +1,4 @@
+// This file is @generated by prost-build.
 /// The X509SVIDRequest message conveys parameters for requesting an X.509-SVID.
 /// There are currently no request parameters.
 #[allow(clippy::derive_partial_eq_without_eq)]