Bump is-terminal from 0.4.8 to 0.4.9

Bumps [is-terminal](https://github.com/sunfishcode/is-terminal) from 0.4.8 to 0.4.9.
- [Commits](sunfishcode/is-terminal@v0.4.8...v0.4.9)

---
updated-dependencies:
- dependency-name: is-terminal
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -31,5 +31,5 @@ anyhow = "1.0.72"
 clap = { version = "4.3.19", features = ["derive", "env", "wrap_help"] }
 clap_complete = "4.3.2"
 clap_mangen = "0.2.12"
-is-terminal = "0.4.7"
+is-terminal = "0.4.9"
 spellabet = { path = "../spellabet" }