GitHub Actions tests on macOS occasionally fail due to unexpected output from KeePassXC in open mode

Describe the bug

chezmoi test on macos on GitHub Actions occasionally fail due to unexpected output from KeePassXC in open mode, like in this run:

Run go test -race ./...
...
--- FAIL: TestKeepassxcTemplateFuncs (2.25s)
    --- FAIL: TestKeepassxcTemplateFuncs/open (0.86s)
        --- FAIL: TestKeepassxcTemplateFuncs/open/correct_password (0.[19](https://github.com/twpayne/chezmoi/actions/runs/8074261512/job/22059282447#step:9:20)s)
            keepassxctemplatefuncs_test.go:1[30](https://github.com/twpayne/chezmoi/actions/runs/8074261512/job/22059282447#step:9:31): Expected values to be equal:
                +show "test group/test entry" --attributes UserName --quiet --show-protected
                 test / username
                \ No newline at end of file

To reproduce

I don't know how to reproduce this. This occasionally fails on GitHub Actions but I haven't seen it locally on my macOS machine.

Expected behavior

The test should always pass.

Output of command with the `--verbose` flag

n/a

Output of `chezmoi doctor`

```console $ chezmoi doctor RESULT CHECK MESSAGE ok version v2.47.1, commit 1ce6b2eeb0caf75bd91883e5a968e713a26e7be2, built at 2024-03-03T00:47:52Z, built by Homebrew ok latest-version v2.47.1 ok os-arch darwin/arm64 ok uname Darwin MacBook-Air 23.2.0 Darwin Kernel Version 23.2.0: Wed Nov 15 21:53:34 PST 2023; root:xnu-10002.61.3~2/RELEASE_ARM64_T8103 arm64 ok go-version go1.22.0 (gc) ok executable /opt/homebrew/bin/chezmoi ok upgrade-method brew-upgrade ok config-file ~/.config/chezmoi/chezmoi.toml, last modified 2024-03-03T03:43:09+01:00 ok source-dir ~/.local/share/chezmoi is a git working tree (clean) ok suspicious-entries no suspicious entries ok working-tree ~/.local/share/chezmoi is a git working tree (clean) ok dest-dir ~ is a directory ok umask 022 ok cd-command found /bin/zsh ok cd-args /bin/zsh info diff-command not set ok edit-command found /opt/homebrew/bin/nvim ok edit-args /opt/homebrew/bin/nvim ok git-command found /opt/homebrew/bin/git, version 2.44.0 ok merge-command found /usr/bin/vimdiff ok shell-command found /bin/zsh ok shell-args /bin/zsh ok age-command found /opt/homebrew/bin/age, version 1.1.1 ok gpg-command found /opt/homebrew/bin/gpg, version 2.4.4 info pinentry-command not set ok 1password-command found /opt/homebrew/bin/op, version 2.25.0 info bitwarden-command bw not found in $PATH info bitwarden-secrets-command bws not found in $PATH info dashlane-command dcli not found in $PATH info doppler-command doppler not found in $PATH info gopass-command gopass not found in $PATH info keepassxc-command keepassxc-cli not found in $PATH info keepassxc-db not set info keeper-command keeper not found in $PATH info lastpass-command lpass not found in $PATH info pass-command pass not found in $PATH info passhole-command ph not found in $PATH info rbw-command rbw not found in $PATH info vault-command vault not found in $PATH info vlt-command vlt not found in $PATH info secret-command not set```

Additional context

These lines should remove the echoed command from the output, but for some reason I don't understand, the echoed command is still appearing in the output.

twpayne / chezmoi