chore(deps): bump phf from 0.8.0 to 0.9.0 (#51)

Bumps [phf](https://github.com/sfackler/rust-phf) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/sfackler/rust-phf/releases)
- [Changelog](https://github.com/rust-phf/rust-phf/blob/master/CHANGELOG.md)
- [Commits](rust-phf/rust-phf@v0.8.0...v0.9.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

Cargo.lock

@@ -19,5 +19,5 @@ name = "monkey-interpreter"
 path = "main.rs"
 
 [dependencies]
-phf = { version = "0.8", features = ["macros"] }
+phf = { version = "0.9", features = ["macros"] }
 monkey-parser = { path = "../parser", version = "=0.5.0" }