Authorization header not printed when using digest auth

http -v -A digest -a username:password pie.dev/digest-auth/auth/username/password doesn't print the Authorization request header
I guess this is challenging because the header is populated in the requests library
> http -v -A digest -a username:password pie.dev/digest-auth/auth/username/password --debug
HTTPie 3.2.1
Requests 2.26.0
Pygments 2.7.1
Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110]
/usr/bin/python3
Linux 5.10.142-19739-g5899aa8f604c

<Environment {'apply_warnings_filter': <function Environment.apply_warnings_filter at 0x7aa7d104e700>,
 'args': Namespace(),
 'as_silent': <function Environment.as_silent at 0x7aa7d104e5e0>,
 'colors': 256,
 'config': {'default_options': []},
 'config_dir': PosixPath('/home/matt/.config/httpie'),
 'devnull': <property object at 0x7aa7d10f90e0>,
 'is_windows': False,
 'log_error': <function Environment.log_error at 0x7aa7d104e670>,
 'program_name': 'http',
 'quiet': 0,
 'rich_console': <functools.cached_property object at 0x7aa7d1118d00>,
 'rich_error_console': <functools.cached_property object at 0x7aa7d10b1ee0>,
 'show_displays': True,
 'stderr': <_io.TextIOWrapper name='<stderr>' mode='w' encoding='utf-8'>,
 'stderr_isatty': True,
 'stdin': <_io.TextIOWrapper name='<stdin>' mode='r' encoding='utf-8'>,
 'stdin_encoding': 'utf-8',
 'stdin_isatty': True,
 'stdout': <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>,
 'stdout_encoding': 'utf-8',
 'stdout_isatty': True}>

<PluginManager {'adapters': [],
 'auth': [<class 'httpie.plugins.builtin.BasicAuthPlugin'>,
          <class 'httpie.plugins.builtin.DigestAuthPlugin'>,
          <class 'httpie.plugins.builtin.BearerAuthPlugin'>],
 'converters': [],
 'formatters': [<class 'httpie.output.formatters.headers.HeadersFormatter'>,
                <class 'httpie.output.formatters.json.JSONFormatter'>,
                <class 'httpie.output.formatters.xml.XMLFormatter'>,
                <class 'httpie.output.formatters.colors.ColorFormatter'>]}>

>>> requests.request(**{'auth': <requests.auth.HTTPDigestAuth object at 0x7aa7d0ddce80>,
 'data': RequestJSONDataDict(),
 'headers': <HTTPHeadersDict('User-Agent': b'HTTPie/3.2.1')>,
 'method': 'get',
 'params': <generator object MultiValueOrderedDict.items at 0x7aa7d0c63ac0>,
 'url': 'http://pie.dev/digest-auth/auth/username/password'})

GET /digest-auth/auth/username/password HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Host: pie.dev
User-Agent: HTTPie/3.2.1

HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
CF-Cache-Status: DYNAMIC
CF-RAY: 764f8c0d5d7e72c7-LHR
Connection: keep-alive
Content-Encoding: gzip
Content-Type: application/json
Date: Fri, 04 Nov 2022 18:52:29 GMT
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=ZopT9m6iwhzwDZHMAedQf0kZ4yELEqrElPOpkJwwm7w4BqJi9qVHrFlwBmKpWJT8%2FZxbLcdm%2B2HN2h2Cz%2FO0eS6JPqGeqN9wOum0%2F7wvvFv6f465Gu%2BEUNVE"}],"group":"cf-nel","max_age":604800}
Server: cloudflare
Set-Cookie: fake=fake_value; Path=/
Set-Cookie: stale_after=never; Path=/
Transfer-Encoding: chunked
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

{
    "authenticated": true,
    "user": "username"
}
httpie / cli

Authorization header not printed when using digest auth #1447
