yamlfix configuration options are not used

## Information

**VIM version**
```bash
VIM - Vi IMproved 8.1 (2018 May 18, compilé Sep 27 2023 19:47:00)
Rustines incluses : 1-875, 878, 881, 883-884, 936, 948, 1046, 1365-1368, 1382, 1401, 4120, 4151-4152, 4214, 4218, 4397, 4428, 4899, 4919, 4921, 4977, 5023-5024, 805, 5043, 5063, 5126, 1858, 1873
```
**YAMLFIX version**
```bash
(ins)$ yamlfix --version
------------------------------------------------------------------
yamlfix: 1.15.0
Python: 3.7.3
Platform: Linux-4.19.0-25-amd64-x86_64-with-debian-10.13
------------------------------------------------------------------
```
Operating System: Debian10

## What went wrong

I just configured yamlfix usage with ale in order to fix common errors in yaml files.
I went throught this process : https://lyz-code.github.io/yamlfix/#configure-environment-prefix to create some variables in my bashrc file:
```bash
# YAMLFIX config
export YAMLFIX_LINE_LENGTH="300"
export YAMLFIX_NONE_REPRESENTATION="null"
export YAMLFIX_SECTION_WHITELINES="1"
export YAMLFIX_COMMENTS_WHITELINES="1"
export YAMLFIX_EXPLICIT_START="false"
export YAMLFIX_quote_representation="'"
```
and configured this line in my vimrc file :
```vim
let g:ale_yaml_yamlfix_options = '--env-prefix "YAMLFIX_"'
```

These variables are not used at all and yamlfix continue to use default usage (adding "---" for example).
Did I miss something ?

### :ALEInfo

Expand

```vim
Linter Variables:
" Press Space to read :help for a setting
let g:ale_yaml_ls_config = {}
let g:ale_yaml_ls_executable = 'yaml-language-server'
let g:ale_yaml_ls_use_global = 0
let g:ale_yaml_yamlfix_executable = 'yamlfix'
let g:ale_yaml_yamlfix_options = '--env-prefix "YAMLFIX_"'
let g:ale_yaml_yamlfix_use_global = 1
let g:ale_yaml_yamllint_executable = 'yamllint'
let g:ale_yaml_yamllint_options = ''

Global Variables:
" Press Space to read :help for a setting
let g:ale_cache_executable_check_failures = v:null
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = ''
let g:ale_completion_delay = v:null
let g:ale_completion_enabled = 0
let g:ale_completion_max_suggestions = v:null
let g:ale_disable_lsp = 'auto'
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'E'
let g:ale_echo_msg_format = '[%linter%] [%severity%] %code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'W'
let g:ale_enabled = 1
let g:ale_fix_on_save = 1
let g:ale_fixers = {'*': ['remove_trailing_lines', 'trim_whitespace'], 'yaml': ['yamlfix'], 'python': ['add_blank_lines_for_python_control_statements', 'autopep8', 'black', 'yapf', 'pyflyby', 'autoimport']}
let g:ale_history_enabled = 1
let g:ale_info_default_mode = 'preview'
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = v:null
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 0
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'normal'
let g:ale_linter_aliases = {}
let g:ale_linters = {'vim': ['vint'], 'rst': ['rstcheck'], 'yaml': ['yamllint'], 'gitcommit': ['gitlint'], 'python': ['pylama', 'bandit', 'cspell', 'flake8', 'flakehell', 'jedils', 'mypy', 'prospector', 'pycodestyle', 'pydocstyle', 'pyflakes', 'pylint', 'pylsp', 'pyre', 'pyright', 'refurb', 'ruff', 'unimport', 'vulture']}
let g:ale_linters_explicit = 0
let g:ale_linters_ignore = {}
let g:ale_list_vertical = v:null
let g:ale_list_window_size = 5
let g:ale_loclist_msg_format = v:null
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = v:null
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 0
let g:ale_set_highlights = 0
let g:ale_set_loclist = 0
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = '✘'
let g:ale_sign_info = 'I'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = '✘'
let g:ale_sign_style_warning = '⚠'
let g:ale_sign_warning = '⚠'
let g:ale_sign_highlight_linenrs = 0
let g:ale_type_map = {}
let g:ale_use_neovim_diagnostics_api = 0
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 'current'
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1

Command History:

(executable check - success) yamllint
…
(finished - exit code 1) ['/bin/bash', '-c', '''yamllint'' -f parsable ''/tmp/vZbWYpo/12/file.yaml''']
…
(finished - exit code 0) ['/bin/bash', '-c', 'cd ''/home/directory'' && ''yamlfix'' --env-prefix "YAMLFIX_" - < ''/tmp/vZbWYpo/15/file.yaml''']
(started) ['/bin/bash', '-c', '''yamllint'' -f parsable ''/tmp/vZbWYpo/16/file.yaml''']
(finished - exit code 1) ['/bin/bash', '-c', '''yamllint'' -f parsable ''/tmp/vZbWYpo/17/file.yaml''']
…
```