direnv: Update to 2.34.0

Changes:
2.34.0
======
  * doc: README.md, man pages: it's typos
  * doc: add shell setup instructions for oh-my-zsh
  * doc: added fetchurl manpage link to README.md
  * doc: document XDG_DATA_HOME
  * feat: add Murex support
  * feat: added systemd shell for export
  * feat: allow to disable warn timeouts
  * feat: hide env diff
  * feat: made 'direnv export' non private
  * fix: `use_julia` should not set LD_LIBRARY_PATH
  * fix: add missing deps for release in go.mod
  * fix: avoid use of regex in bash hook output
  * fix: direnv.toml.1.md: add examples for $HOME expansion
  * fix: stdlib: use_flake: don't keep old generations around
  * fix: stdlib: use_node: strip leading v from version
  * fix: support Bash 5.1 array PROMPT_COMMAND
  * fix: update stdlib.sh to avoid deprecation warning
  * fix: update zsh syntax in internal/cmd/shell_zsh.go

(leot)