libsoup: upgrade 3.2.2 -> 3.4.0

libsoup: upgrade 3.2.2 -> 3.4.0

Changelog:
==========
* Fix possible crash in SoupContentSniffer
* Fix socket leak
* Add missing annotation to soup_header_g_string_append_param_quoted()
* Fix regression in 'SoupCookieJar' not handling valid Secure cookies
* Fix crash when skipping HTTP/1 response stream with chunked enconding
* Change Session to unqueue finished items earlier without an extra MainContext iteration
* Add 'SoupMessage::got-body-data' signal to monitor progress of reads
* Add 'soup_session_send_and_splice()' and 'soup_session_send_and_splice_async()' convenience APIs
* Add 'soup_message_set_force_http1()' and 'soup_message_get_force_http1()' APIs
* Change 'soup_cookie_copy()' to not retain default ports
* Ensure 'SoupServerMessage' socket is available in websocket handler
* Fix 'soup_message_new()' not erroring when URI has an empty host
* Fix thread-saftey issues in 'SoupConnectionAuth'
* Fix various connection leaks
* Fix the possibility of sending invalid empty 'Sec-WebSocket-Protocol' header
* Fix IO errors not being handled on 'CONNECT' messages
* Numerous improvements to cookies:
    * Add support for cookie prefixes ('__Secure-' and '__Host-')
    * Reject cookies with control characters in name or value
    * Reject 'SameSite=None' cookies without 'Secure'
    * Change 'soup_cookie_parse()' to be more strict about what is considered whitespace
    * Change default SameSite value to 'Lax'
    * Fix 'soup_cookie_equal()' with 'NULL' path

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>