deps(libtmux[~=0.55.0]): Bump from ~=0.53.0 (#1019)

Pick up three libtmux releases (0.53.1 → 0.54.0 → 0.55.0)
bringing structured logging, new Pane API, configurable tmux
binary, and bug fixes improving error propagation.

- **0.55.0**: `Pane.set_title()`, `Server(tmux_bin=)`,
  pre-execution DEBUG logging, `TmuxCommandNotFound` consistency
- **0.54.0**: Structured lifecycle INFO logging, `NullHandler`,
  `Window.rename_window()` raises on failure,
  `Server.kill()` handles "no server running" gracefully,
  `Session.kill_window()` target fix
- **0.53.1**: Race condition fix in `new_session()`

Release: https://github.com/tmux-python/libtmux/releases/tag/v0.55.0
Changelog: https://libtmux.git-pull.com/history.html#libtmux-0-55-0-2026-03-07

Author: tony

CHANGES

@@ -35,6 +35,14 @@ $ pipx install --suffix=@next 'tmuxp' --pip-args '\--pre' --force
 _Notes on the upcoming release will go here._
 <!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->
 
+### Breaking Changes
+
+#### **libtmux** minimum bumped from `~=0.53.0` to `~=0.55.0` (#1019)
+
+  Picks up three releases: 0.53.1 (race condition fix in `new_session()`),
+  0.54.0 (structured lifecycle logging, error propagation fixes), and
+  0.55.0 (`Pane.set_title()`, `Server(tmux_bin=)`, pre-execution DEBUG logging).
+
 ## tmuxp 1.64.1 (2026-03-08)
 
 ### Bug fixes

pyproject.toml

@@ -39,7 +39,7 @@ include = [
   { path = "conftest.py", format = "sdist" },
 ]
 dependencies = [
-  "libtmux~=0.53.0",
+  "libtmux~=0.55.0",
   "colorama>=0.3.9",
   "PyYAML>=6.0"
 ]