hooks.py(fix[set_hook]): Remove invalid prevent_overwrite parameter

why: tmux set-hook does not accept -o flag (only set-option does).
     Verified against ~/study/c/tmux/cmd-set-option.c:65 which shows
     set-hook accepts "agpRt:uw" only.
what:
- Remove prevent_overwrite parameter from set_hook() signature
- Remove prevent_overwrite flag handling code

Author: tony

src/libtmux/hooks.py

@@ -113,7 +113,6 @@ def set_hook(
         value: int | str,
         unset: bool | None = None,
         run: bool | None = None,
-        prevent_overwrite: bool | None = None,
         ignore_errors: bool | None = None,
         append: bool | None = None,
         g: bool | None = None,
@@ -157,10 +156,6 @@ def set_hook(
             assert isinstance(run, bool)
             flags.append("-R")
 
-        if prevent_overwrite is not None and prevent_overwrite:
-            assert isinstance(prevent_overwrite, bool)
-            flags.append("-o")
-
         if ignore_errors is not None and ignore_errors:
             assert isinstance(ignore_errors, bool)
             flags.append("-q")