chore: update test count badge to 1170 tests [skip ci]

Author: github-actions[bot]

README.md

@@ -1,5 +1,5 @@
 [![CI](https://github.com/phranck/TUIkit/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/phranck/TUIkit/actions/workflows/ci.yml)
-![Tests](https://img.shields.io/badge/Tests-1165%2B_passing-brightgreen)
+![Tests](https://img.shields.io/badge/Tests-1170%2B_passing-brightgreen)
 [![Release](https://img.shields.io/github/v/release/phranck/TUIkit?label=Release)](https://github.com/phranck/TUIkit/releases/latest)
 ![Swift 6.0](https://img.shields.io/badge/Swift-6.0-F05138?logo=swift&logoColor=white)
 ![Platforms](https://img.shields.io/badge/Platforms-macOS%20%7C%20Linux-blue)
@@ -246,7 +246,7 @@ Tests/
 ## Developer Notes
 
 - Tests use Swift Testing (`@Test`, `#expect`): run with `swift test`
-- All 1165 tests run in parallel
+- All 1170 tests run in parallel
 - The `Terminal` class handles raw mode and cursor control via POSIX `termios`
 
 ## Contribution