The `bytearray()` value set to `bytes.partition()` and `bytes.rpartition()` is not converted to a `bytes()` value, keeping a `bytearray()` value in a tuple

Bug report

Bug description:

The bytearray() value set to bytes.partition() and bytes.rpartition() is not converted to a bytes() value, keeping a bytearray() value in a tuple as shown below:

v = bytes(b'ABCD')

                # ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓           # ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
print(v.partition(bytearray(b'BC')))  # (b'A', bytearray(b'BC'), b'D')
print(v.rpartition(bytearray(b'BC'))) # (b'A', bytearray(b'BC'), b'D')
                 # ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑          # ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑

The bytearray() value set to bytes.partition() and bytes.rpartition() should be converted to a bytes() value, not keeping a bytearray() value in a tuple because they are bytes functions and because of readability and consistency as shown below:

v = bytes(b'ABCD')

                # ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓           # ↓↓↓↓↓
print(v.partition(bytearray(b'BC')))  # (b'A', b'BC', b'D')
print(v.rpartition(bytearray(b'BC'))) # (b'A', b'BC', b'D')
                 # ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑          # ↑↑↑↑↑

In addition, the bytes() value set to bytearray.partition() and bytearray.rpartition() is converted to a bytearray() value, not keeping a bytes() value in a tuple as shown below:

v = bytearray(b'ABCD')

                # ↓↓↓↓↓↓↓↓↓↓↓↓                      # ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
print(v.partition(bytes(b'BC')))  # (bytearray(b'A'), bytearray(b'BC'), bytearray(b'D'))
print(v.rpartition(bytes(b'BC'))) # (bytearray(b'A'), bytearray(b'BC'), bytearray(b'D'))
                 # ↑↑↑↑↑↑↑↑↑↑↑↑                     # ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑

CPython versions tested on:

3.12

Operating systems tested on:

Windows

Run the provided Python examples first, then locate the bytes.partition(), bytes.rpartition(), bytearray.partition(), and bytearray.rpartition() implementations and their tests. Done means the returned tuple elements consistently match the type of the object on which partitioning is called, with regression coverage for both directions and both argument types.