bump: v3.3.5 with portable-pty-psmux 0.9.4, vt100-psmux 0.16.7

Fixes since v3.3.4:
- fix: warm pane CPR response (shell blocked on ESC[6n)
- fix: capture-pane/display-message -pt flag cluster parsing (CLI)
- fix: if-shell brace-block over TCP (connection crash)
- fix: version output 'tmux' prefix for libtmux compat (#318)
- fix: flaky backpressure test (mutex serialization)
- bump: portable-pty-psmux 0.9.3 -> 0.9.4 (#167 ConPTY fix)
- bump: vt100-psmux 0.16.6 -> 0.16.7 (scrollback, clipboard, progress)
- chore: update yanked unicode-segmentation 1.13.1 -> 1.13.2

fix(#273): bind prefix-key to send-prefix

fix(#272): TTL cache for #(cmd) status-format expansion

fix(#266): explicit -n NAME persists; per-window automatic-rename rep…

…orting

fix(#167): MSDN-compliant ConPTY spawn + PSMUX_BARE_ENV + visible sta…

…rtup log

fix(#88): preserve TUI alt-screen content into scrollback

bump: v3.3.4 -- fix release workflow (remove double-download checksum…

… verify, make crates.io idempotent)

v3.3.0.4: named buffers, libtmux native API, PR #207 workaround elimi…

…nation

bump: v3.3.3 (re-release of v3.3.2.1 with proper semver)

bump: v3.3.2 with portable-pty-psmux 0.9.3, vt100-psmux 0.16.6