rust/toolchains(deps): bump wasmparser in /tools-builder/toolchains (#482)

Bumps [wasmparser](https://github.com/bytecodealliance/wasm-tools) from 0.243.0 to 0.251.0.
- [Release notes](https://github.com/bytecodealliance/wasm-tools/releases)
- [Commits](https://github.com/bytecodealliance/wasm-tools/commits)

---
updated-dependencies:
- dependency-name: wasmparser
  dependency-version: 0.250.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

tools-builder/toolchains/Cargo.lock

@@ -16,7 +16,7 @@ env_logger = "0.11"
 log = "0.4"
 
 # WebAssembly parsing and manipulation
-wasmparser = "0.243"
+wasmparser = "0.251"
 wasm-encoder = "0.250"
 wat = "1.250"