chore(deps): update msrv (3 versions) to v1.84 (#15456)

This PR contains the following updates:

| Package | Update | Change | Pending |
|---|---|---|---|
| [MSRV:3](https://redirect.github.com/rust-lang/rust) | minor | `1.83`
-> `1.84` | `1.86` (+1) |

---

### Release Notes

<details>
<summary>rust-lang/rust (MSRV:3)</summary>

###
[`v1.84`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1841-2025-01-30)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.83.0...1.84.0)

\==========================

<a id="1.84.1"></a>

- [Fix ICE 132920 in duplicate-crate
diagnostics.](https://redirect.github.com/rust-lang/rust/pull/133304/)
- [Fix errors for overlapping impls in incremental
rebuilds.](https://redirect.github.com/rust-lang/rust/pull/133828/)
- [Fix slow compilation related to the next-generation trait
solver.](https://redirect.github.com/rust-lang/rust/pull/135618/)
- [Fix debuginfo when LLVM's location discriminator value limit is
exceeded.](https://redirect.github.com/rust-lang/rust/pull/135643/)
-   Fixes for building Rust from source:
- [Only try to distribute `llvm-objcopy` if llvm tools are
enabled.](https://redirect.github.com/rust-lang/rust/pull/134240/)
- [Add Profile Override for Non-Git
Sources.](https://redirect.github.com/rust-lang/rust/pull/135433/)
- [Resolve symlinks of LLVM tool binaries before copying
them.](https://redirect.github.com/rust-lang/rust/pull/135585/)
- [Make it possible to use ci-rustc on tarball
sources.](https://redirect.github.com/rust-lang/rust/pull/135722/)

</details>

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Author: epage

Cargo.toml

@@ -11,7 +11,7 @@ exclude = [
 ]
 
 [workspace.package]
-rust-version = "1.83"  # MSRV:3
+rust-version = "1.84"  # MSRV:3
 edition = "2021"
 license = "MIT OR Apache-2.0"
 homepage = "https://github.com/rust-lang/cargo"