Changes in libsoup from 3.0.6 to 3.0.7:

* Fix leak in SoupAuthNTLM [Milan Crha]
* Fix constructing SoupAuthNTLM objects [Milan Crha]
* Disable mutual negotiation in SoupAuthNegotiate [Michael Catanzaro]
* http2: Do not advertise the `h2` protocool for proxy connections [Carlos Garcia Campos]
* http2: Remove left-over headers when HTTP/1 redirects to HTTP/2 [Carlos Garcia Campos]
* http2: Handle HTTP_1_1_REQUIRED error [Carlos Garcia Campos]
* http2: Read request bodies synchronously for sync requests [Carlos Garcia Campos]
* http2: Properly handle server sending shut down GOAWAY [Carlos Garcia Campos]
* tests: Remove dependency on Apache's PHP module [Carlos Garcia Campos]
* tests: Depend upon Apache's http2 module [Carlos Garcia Campos]