Update dependency rules_rust to v0.42.1 (#315)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| rules_rust | bazel_dep | minor | `0.41.1` -> `0.42.1` |

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tests/MODULE.bazel

@@ -24,7 +24,7 @@ bazel_dep(name = "bazel_skylib", version = "1.5.0")
 bazel_dep(name = "platforms", version = "0.0.9")
 bazel_dep(name = "rules_cc", version = "0.0.9")
 bazel_dep(name = "rules_go", version = "0.46.0", repo_name = "io_bazel_rules_go")
-bazel_dep(name = "rules_rust", version = "0.41.1")
+bazel_dep(name = "rules_rust", version = "0.42.1")
 bazel_dep(name = "rules_foreign_cc", version = "0.10.1")
 bazel_dep(name = "abseil-cpp", version = "20240116.2", repo_name = "com_google_absl")