`MultiPartParser` always fails on PATCH requests

[Mis1eader-dev]

Describe the bug Using PUT it works fine, but PATCH refuses to parse the body.

To Reproduce Steps to reproduce the behavior:

1. Create two API endpoints, one with PUT, one with PATCH.
2. Parse the same Form Data from both.
3. Observe the return status of MultiPartParser::parse on both.
4. parser.parse(req) == -1 is true for PATCH, and false for PUT.

Expected behavior Should work for both HTTP methods.

Additional context The printed body by PUT:

--X-INSOMNIA-BOUNDARY
Content-Disposition: form-data; name="title"

Rozzlin
--X-INSOMNIA-BOUNDARY--

By PATCH:

--X-INSOMNIA-BOUNDARY
Content-Disposition: form-data; name="title"

Rozzlin
--X-INSOMNIA-BOUNDARY--

They are identical, and yet it fails on PATCH?