libsoup: upgrade 3.6.0 -> 3.6.1

libsoup: upgrade 3.6.0 -> 3.6.1

Changelog:
============
* Fix `soup_uri_copy()` reading port as a long instead of an int
* Fix possible NULL deref in `soup_uri_decode_data_uri()`
* Fix possible overflow in `SoupContentSniffer`
* Fix assertion in `soup_uri_decode_data_uri()` on URLs with a path starting with `//`
* headers: Be more robust against invalid input when parsing params
* websocket: Fix possibility of being stuck in a read loop

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>