libsoup: upgrade 3.2.1 -> 3.2.2

Changelog:
==========
* Various HTTP/2 Fixes:
    * Fix `content-sniffed` not being emitted for resources without content
    * Fix leak of SoupServerConnection when stolen

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