chore: bump is-terminal to 0.4.4

Fixes #11710. See sunfishcode/is-terminal#18

Author: weihanglo

Cargo.toml

@@ -39,7 +39,7 @@ humantime = "2.0.0"
 ignore = "0.4.7"
 im-rc = "15.0.0"
 indexmap = "1"
-is-terminal = "0.4.0"
+is-terminal = "0.4.4"
 itertools = "0.10.0"
 jobserver = "0.1.24"
 lazy_static = "1.2.0"