chore: checkpoint before Python removal

vendor/hostname/README.md

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+# hostname
+
+[![Latest Version](https://img.shields.io/crates/v/hostname.svg)](https://crates.io/crates/hostname)
+[![Latest Version](https://docs.rs/hostname/badge.svg)](https://docs.rs/hostname)
+[![Build Status](https://github.com/djc/hostname/actions/workflows/ci.yml/badge.svg)](https://github.com/djc/hostname/actions)
+![Minimum rustc Version](https://img.shields.io/badge/rustc-1.74+-green.svg)
+![MIT Licensed](https://img.shields.io/badge/license-MIT-blue.svg)
+![crates.io](https://img.shields.io/crates/d/hostname)
+
+> Cross-platform system's host name functions in Rust
+
+## Supported platforms
+
+-   [POSIX-compliant](https://en.wikipedia.org/wiki/POSIX#POSIX-oriented_operating_systems) systems\
+    (Linux, macOS, Android, FreeBSD, OpenBSD, NetBSD, Solaris, Redox, and so on)
+-   Windows
+
+## Rust version requirements
+
+Since version `0.4.0` this crate requires Rust version `1.74` or greater.
+
+This version is explicitly tested in CI
+and may be bumped in any major or minor release as needed.\
+Maintaining compatibility with older compilers is a priority though,
+so the bar for bumping the minimum supported version is set very high.
+Any changes to the supported minimum version will be called out in the release notes.
+
+## Usage
+
+Add the following dependency to your Cargo manifest:
+
+```toml
+[dependencies]
+hostname = "^0.4"
+```
+
+Crate API provides two simple functions for retrieving and setting the system's host name:
+
+```rust
+use std::io;
+
+fn main() -> io::Result<()> {
+    // Retrieve the hostname
+    dbg!(hostname::get()?);
+
+    // And set a new one
+    hostname::set("potato")?;
+
+    Ok(())
+}
+```
+
+## License
+
+hostname is primarily distributed under the terms of the MIT license
+([LICENSE](LICENSE) or https://opensource.org/license/mit).