chore: bump version to 1.9.0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ticpu

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ccusage-statusline-rs"
-version = "1.8.2"
+version = "1.9.0"
 edition = "2024"
 
 [profile.release]