QName can't ingest bytearray parameters

Trying to fix up typing on a codebase, types-lxml specs `_Element.tag` as `str | bytes | bytearray | QName`, which seems correct -- even if anything but `str` requires the `tag` to be set manually after the fact. I figured I could use `QName` to normalize the tag name, however while it works perfectly for an str, bytes, or a QName:

    >>> QName("foo").localname
    'foo'
    >>> QName(b"foo").localname
    'foo'
    >>> QName(QName("foo")).localname
    'foo'

bytearray input fails:

    >>> QName(bytearray(b"foo")).localname
    Traceback (most recent call last):
      File "<python-input-25>", line 1, in <module>
        QName(bytearray(b"foo")).localname
        ~~~~~^^^^^^^^^^^^^^^^^^^
      File "src/lxml/etree.pyx", line 1968, in lxml.etree.QName.__init__
      File "src/lxml/apihelpers.pxi", line 1739, in lxml.etree._tagValidOrRaise
    ValueError: Invalid tag name "bytearray(b'foo')"

even though it's possible to set `_Element.tag` to a bytearray:

    >>> e = Element('x')
    >>> e.tag = bytearray(b'x')
    >>> e.tag
    bytearray(b'foo')

so there are edge cases where this can fail at runtime. The stubs are both helpful and frustrating here, because they surface this edge case and result in a type error when writing `QName(e.tag)`. However if one finds out that `QName(_Element)` is also valid, and happen to have this condition happen at runtime, everything typechecks but results in an error:

    >>> QName(e)
    Traceback (most recent call last):
      File "<python-input-34>", line 1, in <module>
        QName(e)
        ~~~~~^^^
      File "src/lxml/etree.pyx", line 1954, in lxml.etree.QName.__init__
    ValueError: Invalid input tag of type <class 'bytearray'>

I think it would make sense for `QName(bytearray)` to be valid resolving these concerns (then the stubs can be updated to match).

Python : sys.version_info(major=3, minor=14, micro=2, releaselevel='final', serial=0)
lxml.etree : (6, 0, 2, 0)
libxml used : (2, 14, 6)
libxml compiled : (2, 14, 6)
libxslt used : (1, 1, 43)
libxslt compiled : (1, 1, 43)